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Journal articles on the topic 'Rashba spin-orbit couplings'

Author: Grafiati

Published: 6 September 2023

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1

Prabhakar, Sanjay, and Roderick Melnik. "Tuning g-factor of electrons through spin–orbit coupling in GaAs/AlGaAs conical quantum dots." International Journal of Modern Physics B 30, no. 13 (May 19, 2016): 1642003. http://dx.doi.org/10.1142/s0217979216420030.

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We investigate band structures of [Formula: see text] three-dimensional conical quantum dots (QDs). In particular, we explore the influence of the Rashba and Dresselhaus spin–orbit couplings in the variation of effective [Formula: see text]-factor of electrons in such QDs. We demonstrate that the interplay between the Rashba and Dresselhaus spin–orbit couplings can provide further insight into underlying physical phenomena and assist in the design of quantum logic gates for the application in spintronic devices.

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2

Eryzhenkov, Alexander V., Artem V. Tarasov, Alexander M. Shikin, and Artem G. Rybkin. "Non-Trivial Band Topology Criteria for Magneto-Spin–Orbit Graphene." Symmetry 15, no. 2 (February 15, 2023): 516. http://dx.doi.org/10.3390/sym15020516.

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Band structure and topology of magneto-spin–orbit graphene is investigated using the proposed tight-binding model that incorporates both Rashba and sublattice-resolved collinear exchange couplings in a generic ferrimagnetic (FIM) setting for in-plane and out-of-plane magnetization directions. The resulting band structures were analyzed for possibilities to extract the strengths of exchange and Rashba couplings from experimental spin-resolved ARPES measurements of the valley gaps and π-state spin-splittings. It was shown that the topologically trivial in-plane FIM situation admits simple expressions for these quantities, whereas the out-of-plane FIM, which admits a nontrivial band topology, is harder to analyze. The obtained topological phase diagrams for the out-of-plane FIM case show that the anomalous Hall conductance is quite stable with respect to the antiferromagnetic (AFM) interaction, which tends to interfere with the QAHE phase; moreover, the topological phase transition has a rather smooth character with respect to the AFM coupling strength.

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3

Dell’Anna, Luca, and Stefano Grava. "Critical Temperature in the BCS-BEC Crossover with Spin-Orbit Coupling." Condensed Matter 6, no. 2 (April 30, 2021): 16. http://dx.doi.org/10.3390/condmat6020016.

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We review the study of the superfluid phase transition in a system of fermions whose interaction can be tuned continuously along the crossover from Bardeen–Cooper–Schrieffer (BCS) superconducting phase to a Bose–Einstein condensate (BEC), also in the presence of a spin–orbit coupling. Below a critical temperature the system is characterized by an order parameter. Generally a mean field approximation cannot reproduce the correct behavior of the critical temperature Tc over the whole crossover. We analyze the crucial role of quantum fluctuations beyond the mean-field approach useful to find Tc along the crossover in the presence of a spin–orbit coupling, within a path integral approach. A formal and detailed derivation for the set of equations useful to derive Tc is performed in the presence of Rashba, Dresselhaus and Zeeman couplings. In particular in the case of only Rashba coupling, for which the spin–orbit effects are more relevant, the two-body bound state exists for any value of the interaction, namely in the full crossover. As a result the effective masses of the emerging bosonic excitations are finite also in the BCS regime.

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4

Guo, Xiaoyong, Xiaobin Ren, Guangjie Guo, and Jie Peng. "Quantum anomalous Hall effect on a square lattice with spin–orbit couplings and an exchange field." Canadian Journal of Physics 92, no. 5 (May 2014): 420–24. http://dx.doi.org/10.1139/cjp-2013-0241.

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We investigate a tight-binding model on a two-dimensional square lattice with three terms: the Rashba spin–orbit coupling, the real amplitude next-nearest spin–orbit coupling, and an exchange field. We calculate the first Chern number to identify band topology. It is found that the Chern number takes the quantized values of C1 = 1, 2 and the chiral edge modes can be obtained. Therefore our model realizes the quantum anomalous Hall (QAH) effect. The Rashba coupling is positive for the QAH phase while the next-nearest coupling is detrimental to it. By increasing the exchange field intensity, the Chern number changes from quantized value 2 to 0. The behavior of the edge states is also studied. Particularly for C1 = 2 case, there are two gapless spin-polarized edge states with the same spin polarization moving in the same spatial direction. This indicates that their appearance is topological rather than accidental.

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5

Gong, S. J., and Z. Q. Yang. "Flying spin-qubit gates implemented through Dresselhaus and Rashba spin–orbit couplings." Physics Letters A 367, no. 4-5 (July 2007): 369–72. http://dx.doi.org/10.1016/j.physleta.2007.03.022.

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6

Liu, Mengnan, Liping Xu, Yong Wan, and Xu Yan. "Effects of Rashba and Dresselhaus spin-orbit couplings on itinerant ferromagnetism." Solid State Communications 270 (February 2018): 50–53. http://dx.doi.org/10.1016/j.ssc.2017.11.009.

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7

Vartanian, Arshak, Albert Kirakosyan, and Karen Vardanyan. "Fröhlich polaron in nanowire with Rashba and Dresselhaus spin-orbit couplings." Superlattices and Microstructures 109 (September 2017): 655–61. http://dx.doi.org/10.1016/j.spmi.2017.05.057.

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8

Imura, Ken-Ichiro, Yoshio Kuramoto, and Kentaro Nomura. "Weak localization properties of graphene with intrinsic and Rashba spin-orbit couplings." Physics Procedia 3, no. 2 (January 2010): 1249–54. http://dx.doi.org/10.1016/j.phpro.2010.01.171.

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9

You, Jia-Bin, Xiao-Qiang Shao, Qing-Jun Tong, A. H. Chan, C. H. Oh, and Vlatko Vedral. "Majorana transport in superconducting nanowire with Rashba and Dresselhaus spin–orbit couplings." Journal of Physics: Condensed Matter 27, no. 22 (May 18, 2015): 225302. http://dx.doi.org/10.1088/0953-8984/27/22/225302.

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10

Vartanian, A. L., A. L. Asatryan, A. G. Stepanyan, K. A. Vardanyan, and A. A. Kirakosyan. "Effect of spin–orbit coupling on the hot-electron energy relaxation in nanowires." International Journal of Modern Physics B 34, no. 32 (November 13, 2020): 2050322. http://dx.doi.org/10.1142/s0217979220503221.

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The energy relaxation of hot electrons is proposed based on the spin–orbit (SO) interaction of both Rashba and Dresselhaus types with the effect of hot phonons. A continuum theory of optical phonons in nanowires taking into account the influence of confinement is used to study the hot-electron energy relaxation. The energy relaxation due to both confined (CO) and interface (IO) optical phonon emission on nanowire radius, electrical field strength, parameters of SO couplings and electron temperature is calculated. For considered values of the nanowire radius as well as other system parameters, scattering by IO phonons prevails over scattering by CO phonons. The presence of an electric field leads to the decrease of power loss in transitions between states with the same spin quantum numbers. With the increase of the electric field strength, the influence of the Dresselhaus SO interaction on the energy relaxation rate decreases. The effect of SO interaction does not change the previously obtained increasing dependence of power loss on electron temperature. The sensitivity of energy relaxation to the electric field also through the Rashba parameter allows controlling the rate of energy by electric field.

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11

Xiao, Yun-Chang, Wei-Yin Deng, Wen-Ji Deng, Rui Zhu, and Rui-Qiang Wang. "Quantum pump in a system with both Rashba and Dresselhaus spin–orbit couplings." Physics Letters A 377, no. 10-11 (April 2013): 817–21. http://dx.doi.org/10.1016/j.physleta.2013.01.041.

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12

Yan, Xu, and Qiang Gu. "Superconductivity in a two-dimensional superconductor with Rashba and Dresselhaus spin–orbit couplings." Solid State Communications 187 (June 2014): 68–71. http://dx.doi.org/10.1016/j.ssc.2014.02.013.

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13

Choudhari, Tarun, and Nivedita Deo. "Graphene with wedge disclination in the presence of intrinsic and Rashba spin orbit couplings." EPL (Europhysics Letters) 108, no. 5 (December 1, 2014): 57006. http://dx.doi.org/10.1209/0295-5075/108/57006.

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14

Dias, C. O., H. O. Frota, and Angsula Ghosh. "Superconducting and DDW states of high-Tccuprates with Rashba and Dresselhaus spin-orbit couplings." physica status solidi (b) 253, no. 9 (May 23, 2016): 1824–29. http://dx.doi.org/10.1002/pssb.201552557.

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15

Yang, Shi-Peng, Mao-Wang Lu, Xin-Hong Huang, Qiang Tang, and Yong-Long Zhou. "Effect of Rashba and Dresselhaus Spin-Orbit Couplings on Electron-Spin Polarization in a Magnetic-Barrier Nanostructure." Journal of Nanoelectronics and Optoelectronics 12, no. 7 (July 1, 2017): 631–36. http://dx.doi.org/10.1166/jno.2017.2073.

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16

Hasanirokh, K., and A. Phirouznia. "Acoustic phonons mediated non-equilibrium spin current in the presence of Rashba and Dresselhaus spin–orbit couplings." Physics Letters A 377, no. 31-33 (October 2013): 1948–53. http://dx.doi.org/10.1016/j.physleta.2013.05.027.

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17

Chen, Sai-Yan, Shi-Peng Yang, Qiang Tang, and Yong-Long Zhou. "Spin filtering in a $$\updelta $$ δ -magnetic-barrier nanostructure modulated by Rashba and Dresselhaus spin–orbit couplings." Journal of Computational Electronics 16, no. 2 (March 27, 2017): 347–53. http://dx.doi.org/10.1007/s10825-017-0976-9.

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18

You, Jia-Bin, A. H. Chan, C. H. Oh, and Vlatko Vedral. "Topological quantum phase transitions in the spin–singlet superconductor with Rashba and Dresselhaus (110) spin–orbit couplings." Annals of Physics 349 (October 2014): 189–200. http://dx.doi.org/10.1016/j.aop.2014.06.009.

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19

Xu, Zhonghui, Weishuai Lv, Mansoor B. A. Jalil, Jinsong Huang, Yangwan Zhong, and Yuguang Chen. "Spin transport properties in a non-uniform quantum wire modulated by both Rashba and Dresselhaus spin–orbit couplings." Physics Letters A 382, no. 39 (October 2018): 2868–75. http://dx.doi.org/10.1016/j.physleta.2018.06.021.

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20

Ravisankar, R., T. Sriraman, R. Kishor Kumar, P. Muruganandam, and P. K. Mishra. "Influence of Rashba spin–orbit and Rabi couplings on the spin-mixing and ground state phases of binary Bose–Einstein condensates." Journal of Physics B: Atomic, Molecular and Optical Physics 54, no. 22 (November 17, 2021): 225301. http://dx.doi.org/10.1088/1361-6455/ac41b2.

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Abstract We study the miscibility properties and ground state phases of two-component spin–orbit (SO) coupled Bose–Einstein condensates (BECs) in a harmonic trap with strong axial confinement. By numerically solving the coupled Gross–Pitaevskii equations in the two-dimensional setting, we analyze the SO-coupled BECs for two possible permutations of the intra- and interspecies interactions, namely (i) weak intra- and weak interspecies interactions (W–W) and (ii) weak intra- and strong interspecies interactions (W–S). Considering the density overlap integral as a miscibility order parameter, we investigate the miscible–immiscible transition by varying the coupling parameters. We obtain various ground state phases, including plane wave, half quantum vortex, elongated plane wave, and different stripe wave patterns for W–W interactions. For finite Rabi coupling, an increase in SO coupling strength leads to the transition from the fully miscible to the partially miscible state. We also characterize different ground states in the coupling parameter space using the root mean square sizes of the condensate. The spin density vector for the ground state phases exhibits density, quadrupole and dipole like spin polarizations. For the W–S interaction, in addition to that observed in the W–W case, we witness semi vortex, mixed mode, and shell-like immiscible phases. We notice a wide variety of spin polarizations, such as density, dipole, quadrupole, symbiotic, necklace, and stripe-like patterns for the W–S case. A detailed investigation in the coupling parameter space indicates immiscible to miscible state phase transition upon varying the Rabi coupling for a fixed Rashba SO coupling. The critical Rabi coupling for the immiscible–miscible phase transition decreases upon increasing the SO coupling strength.

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21

Jian-Wen, Xiong, Hu Liang-Bin, and Zhang Zhen-Xi. "Suppression of Direct Spin Hall Currents in Two-Dimensional Electronic Systems with both Rashba and Dresselhaus Spin-Orbit Couplings." Chinese Physics Letters 23, no. 5 (April 28, 2006): 1278–81. http://dx.doi.org/10.1088/0256-307x/23/5/059.

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22

Yang, Shi-Peng, Mao-Wang Lu, Xin-Hong Huang, Qiang Tang, and Yong-Long Zhou. "Effect of Rashba and Dresselhaus Spin–Orbit Couplings on Electron Spin Polarization in a Hybrid Magnetic–Electric Barrier Nanostructure." Journal of Electronic Materials 46, no. 4 (January 30, 2017): 1937–42. http://dx.doi.org/10.1007/s11664-017-5288-0.

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23

Cimpoiasu, E., B. R. Dunphy, S. Mack, J. A. Christodoulides, B. Lunsford-Poe, and B. R. Bennett. "Effect of illumination on the interplay between Dresselhaus and Rashba spin-orbit couplings in InAs quantum wells." Journal of Applied Physics 126, no. 7 (August 21, 2019): 075704. http://dx.doi.org/10.1063/1.5110476.

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24

ZHAI, XUECHAO, and GUOJUN JIN. "TOPOLOGICAL QUANTUM PHASE TRANSITIONS IN TWO-DIMENSIONAL HEXAGONAL LATTICE BILAYERS." SPIN 03, no. 02 (June 2013): 1330006. http://dx.doi.org/10.1142/s2010324713300065.

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Since the successful fabrication of graphene, two-dimensional hexagonal lattice structures have become a research hotspot in condensed matter physics. In this short review, we theoretically focus on discussing the possible realization of a topological insulator (TI) phase in systems of graphene bilayer (GBL) and boron nitride bilayer (BNBL), whose band structures can be experimentally modulated by an interlayer bias voltage. Under the bias, a band gap can be opened in AB-stacked GBL but is still closed in AA-stacked GBL and significantly reduced in AA- or AB-stacked BNBL. In the presence of spin–orbit couplings (SOCs), further demonstrations indicate whether the topological quantum phase transition can be realized strongly depends on the stacking orders and symmetries of structures. It is observed that a bulk band gap can be first closed and then reopened when the Rashba SOC increases for gated AB-stacked GBL or when the intrinsic SOC increases for gated AA-stacked BNBL. This gives a distinct signal for a topological quantum phase transition, which is further characterized by a jump of the ℤ2 topological invariant. At fixed SOCs, the TI phase can be well switched by the interlayer bias and the phase boundaries are precisely determined. For AA-stacked GBL and AB-stacked BNBL, no strong TI phase exists, regardless of the strength of the intrinsic or Rashba SOCs. At last, a brief overview is given on other two-dimensional hexagonal materials including silicene and molybdenum disulfide bilayers.

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25

Zamani, Ali, Tahereh Azargoshasb, and Elahe Niknam. "Second and third harmonic generations of a quantum ring with Rashba and Dresselhaus spin-orbit couplings: Temperature and Zeeman effects." Physica B: Condensed Matter 523 (October 2017): 85–91. http://dx.doi.org/10.1016/j.physb.2017.08.031.

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26

Zamani, A., T. Azargoshasb, E. Niknam, and E. Mohammadhosseini. "Harmonic generations in a lens-shaped GaAs quantum dot: Dresselhaus and Rashba spin-orbit couplings under electric and magnetic fields." Superlattices and Microstructures 106 (June 2017): 67–75. http://dx.doi.org/10.1016/j.spmi.2017.03.040.

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27

Zamani, A., F. Setareh, T. Azargoshasb, E. Niknam, and E. Mohammadhosseini. "Rashba and Dresselhaus spin-orbit couplings effects on electromagnetically induced transparency of a lens-shaped quantum dot: External electric and magnetic fields." Superlattices and Microstructures 106 (June 2017): 111–21. http://dx.doi.org/10.1016/j.spmi.2017.03.038.

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28

Shen, K., and M. W. Wu. "Infinite Spin Diffusion Length of Any Spin Polarization Along Direction Perpendicular to Effective Magnetic Field from Dresselhaus and Rashba Spin–Orbit Couplings with Identical Strengths in (001) GaAs Quantum Wells." Journal of Superconductivity and Novel Magnetism 22, no. 8 (June 10, 2009): 715–17. http://dx.doi.org/10.1007/s10948-009-0500-y.

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29

Karashtin E.A. "Photovoltaic effect in a ferromagnet with spin-orbit coupling." Physics of the Solid State 64, no. 9 (2022): 1300. http://dx.doi.org/10.21883/pss.2022.09.54170.28hh.

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The effect of the appearance of an electric current induced by the electromagnetic radiation at the interface of a ferromagnet and a non-magnetic material is calculated theoretically, taking into account the Rashba spin-orbit coupling. It is shown that the electric dipole transitions between the spin subbands of the conduction electrons of a ferromagnet due to the Rashba interaction lead to a photocurrent. This current has a resonance at a frequency corresponding to the energy of the exchange splitting of spin subbands. The resonance width is determined by the spin-orbit interaction constant. The estimates show the possibility of experimental observation of this effect in specially prepared multilayer systems. Keywords: Ferromagnet, exchange coupling, Rashba spin-orbit coupling, photovoltaic effect.

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30

LIU, DE, and HONGMEI ZHANG. "SPIN POLARIZATION AND TUNNELING MAGNETORESISTANCE IN FERROMAGNETIC/SEMICONDUCTOR/FERROMAGNETIC HETEROSTRUCTURE." Modern Physics Letters B 22, no. 27 (October 30, 2008): 2667–76. http://dx.doi.org/10.1142/s0217984908017199.

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Based on the coherent quantum transport theory, the spin polarization and tunneling magnetoresistance for polarized electrons through ferromagnetic/semiconductor/ferromagnetic (FM/SM/FM) heterostructure are studied theoretically within the Landauer framework of ballistic transport. The significant quantum size, quantum coherent, angle between the magnetic moments of the left and right ferromagnets, and Rashba spin-orbit interaction are considered simultaneously. The results indicate that the spin polarization and tunneling magnetoresistance are periodic functions of the semiconductor channel length, quasiperiodic functions of the Rashba spin-orbit coupling strength, and depend on the relative orientation of the two magnetizations in the left and right ferromagnets. A moderate angle, semiconductor channel length, and Rashba spin-orbit coupling strength allow a giant spin polarization or tunneling magnetoresistance. The results may be of relevance for the implementation of quasi-one-dimensional spin-transistor devices.

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31

PANDA, S., and B. K. PANDA. "SPIN-ORBIT ENHANCED POLARON IN A SINGLE QUANTUM WELL." Modern Physics Letters B 25, no. 32 (November 21, 2011): 2461–68. http://dx.doi.org/10.1142/s021798491102742x.

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The polaronic corrections to the electron energy and effective mass are calculated taking the Rashba spin-orbit coupling in the compositionally asymmetric single quantum well based on heterostructures of narrow gap semiconductors InGaAs and InAs . The electron interaction with the confined longitudinal optic phonon is considered in the Fröhlich form for calculating the polaron properties. In the weak coupling limit, the polaron properties are enhanced by the Rashba spin-orbit coupling in the asymmetric quantum well.

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32

Zhao, Jingxiang, Xu Yan, and Qiang Gu. "The Zeeman-split superconductivity with Rashba and Dresselhaus spin–orbit coupling." International Journal of Modern Physics B 31, no. 25 (October 10, 2017): 1745011. http://dx.doi.org/10.1142/s0217979217450114.

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The superconductivity with Rashba and Dressehlaus spin–orbit coupling and Zeeman effect is investigated. The energy gaps of quasi-particles are carefully calculated. It is shown that the coexistence of two spin–orbit coupling might suppress superconductivity. Moreover, the Zeeman effect favors spin-triplet Cooper pairs.

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33

Belich, H., and K. Bakke. "A spin-orbit coupling for a neutral particle from Lorentz symmetry breaking effects in the CPT-odd sector of the Standard Model Extension." International Journal of Modern Physics A 30, no. 22 (August 5, 2015): 1550136. http://dx.doi.org/10.1142/s0217751x15501365.

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We start by investigating the arising of a spin-orbit coupling and a Darwin-type term that stem from Lorentz symmetry breaking effects in the CPT-odd sector of the Standard Model Extension. Then, we establish a possible scenario of the violation of the Lorentz symmetry that gives rise to a linear confining potential and an effective electric field in which determines the spin-orbit coupling for a neutral particle analogous to the Rashba coupling [E. I. Rashba, Sov. Phys. Solid State 2, 1109 (1960)]. Finally, we confine the neutral particle to a quantum dot [W.-C. Tan and J. C. Inkson, Semicond. Sci. Technol. 11, 1635 (1996)] and analyze the influence of the linear confining potential and the spin-orbit coupling on the spectrum of energy.

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34

Azizi, J. "Calculation of the anisotropic magnetoresistance in the electron gas." Modern Physics Letters B 29, no. 34 (December 20, 2015): 1550230. http://dx.doi.org/10.1142/s0217984915502309.

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In this paper, the anisotropic magnetoresistance (AMR) and electron conductivity of electron gas in presence of the Rashba and Dresselhaus spin-orbit coupling are investigated. Boltzmann equation is solved exactly for low temperature, including electron scattering. Calculations have been performed within the coherent potential approximation. Results of the transport study demonstrate that the AMR enhances as the Rashba strength increases. It is also observed that the AMR depends critically on spin-orbit coupling strength, wave vector and Dresselhaus strength.

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35

JOHANNESSON, HENRIK, DAVID F. MROSS, and ERIK ERIKSSON. "TWO-IMPURITY KONDO MODEL: SPIN-ORBIT INTERACTIONS AND ENTANGLEMENT." Modern Physics Letters B 25, no. 12n13 (May 30, 2011): 1083–91. http://dx.doi.org/10.1142/s0217984911026796.

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Motivated by proposals to employ RKKY-coupled spins as building blocks in a solid-state quantum computer, we analyze how the RKKY interaction in a 2D electron gas is influenced by spin-orbit interactions. Using a two-impurity Kondo model with added Dresselhaus and Rashba spin-orbit interactions we find that spin-rotational invariance of the RKKY interaction — essential for a well-controllable two-qubit gate — is restored when tuning the Rashba coupling to have the same strength as the Dresselhaus coupling. We also discuss the critical properties of the two-impurity Kondo model in the presence of spin-orbit interactions, and extract the leading correction to the block entanglement scaling due to these interactions.

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36

BRYKSIN, V. V., and P. KLEINERT. "DYNAMIC MAGNETOELECTRIC AND CHARGE-HALL EFFECTS IN THE RASHBA–DRESSELHAUS MODEL." International Journal of Modern Physics B 20, no. 29 (November 20, 2006): 4937–46. http://dx.doi.org/10.1142/s0217979206035680.

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In a biased two-dimensional electron gas, the presence of spin-orbit coupling of both the Rashba and Dresselhaus type leads to a Hall conductivity of charge carriers in the absence of an external magnetic field. We study the dynamical charge-Hall effect, the field-induced spin accumulation, and the magnetoelectric effect for a system with short-range elastic impurity scattering by analytically solving the kinetic equations for the spin-density matrix in the linear response regime. By tuning the strength of the Rashba and Dresselhaus spin-orbit coupling as well as the frequency and direction of the applied electric field, eigenmodes of the spin-coupled system are identified.

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37

Wu, Liang, Wenzhe Zhou, Dehe Zhang, and Fangping Ouyang. "Theoretical study of spin-orbit coupling in Janus monolayer MA₂Z₄." Journal of Physics: Conference Series 2263, no. 1 (April 1, 2022): 012014. http://dx.doi.org/10.1088/1742-6596/2263/1/012014.

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Abstract In this paper, based on first-principles calculations, we investigate the energy valley and spin-orbit coupling properties of Janus monolayer MA2Z4. The stability of different structures is illustrated. Due to the breaking of mirror symmetry, Rashba splitting occurs at the Γ point in the band structures of Janus monolayers WSiGeN4 and WSi2(NP)2. The relationship between Rashba spin-orbit coupling strength and potential energy gradient and d-orbital composition is explored. Janus monolayer WSi2(NP)2 has stronger Rashba effect than WSiGeN4 due to the strong asymmetry of the d orbital of W atom. These results help to promote the application of two-dimensional materials in spintronics and valleytronics.

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38

ZHAI, HUI. "SPIN-ORBIT COUPLED QUANTUM GASES." International Journal of Modern Physics B 26, no. 01 (January 10, 2012): 1230001. http://dx.doi.org/10.1142/s0217979212300010.

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In this review we will discuss the experimental and theoretical progresses in studying spin–orbit coupled degenerate atomic gases during the last two years. We shall first review a series of pioneering experiments in generating synthetic gauge potentials and spin–orbit coupling in atomic gases by engineering atom-light interaction. Realization of spin–orbit coupled quantum gases opens a new avenue in cold atom physics, and also brings out a lot of new physical problems. In particular, the interplay between spin–orbit coupling and inter-atomic interaction leads to many intriguing phenomena. By reviewing recent theoretical studies of both interacting bosons and fermions with isotropic Rashba spin–orbit coupling, the key message delivered here is that spin–orbit coupling can enhance the interaction effects, and make the interaction effects much more dramatic even in the weakly interacting regime.

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39

Tan, Seng Ghee, and Mansoor B. A. Jalil. "Magnified Damping Under Rashba Spin–Orbit Coupling." SPIN 06, no. 01 (March 2016): 1650002. http://dx.doi.org/10.1142/s2010324716500028.

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The spin–orbit coupling spin torque consists of the field-like [S. G. Tan et al., arXiv:0705.3502 (2007).] and the damping-like terms [H. Kurebayashi et al., Nat. Nanotechnol. 9, 211 (2014).] that have been widely studied for applications in magnetic memory. We focus, in this paper, not on the spin–orbit effect producing the above spin torques, but on its magnifying the damping constant of all field-like spin torques. As first-order precession leads to second-order damping, the Rashba constant is naturally co-opted, producing a magnified field-like damping effect. The Landau–Liftshitz–Gilbert equations are written separately for the local magnetization and the itinerant spin, allowing the progression of magnetization to be self-consistently locked to the spin.

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40

Караштин, Е. А. "Фотогальванический эффект в ферромагнетике со спин-орбитальным взаимодействием." Физика твердого тела 64, no. 9 (2022): 1311. http://dx.doi.org/10.21883/ftt.2022.09.52825.28hh.

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The effect of the appearance of an electric current induced by the electromagnetic radiation at the interface of a ferromagnet and a non-magnetic material is calculated theoretically, taking into account the Rashba spin-orbit coupling. It is shown that the electric dipole transitions between the spin subbands of the conduction electrons of a ferromagnet due to the Rashba interaction lead to a photocurrent. This current has a resonance at a frequency corresponding to the energy of the exchange splitting of spin subbands. The resonance width is determined by the spin-orbit interaction constant. The estimates made show the possibility of experimental observation of this effect in specially prepared multilayer systems.

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41

Jia, Yi-zhen, Wei-xiao Ji, Chang-wen Zhang, Shu-feng Zhang, Ping Li, and Pei-ji Wang. "Films based on group IV–V–VI elements for the design of a large-gap quantum spin Hall insulator with tunable Rashba splitting." RSC Advances 7, no. 19 (2017): 11636–43. http://dx.doi.org/10.1039/c6ra28838c.

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Zhang, Wenyan, and Gongxuan Lu. "The enhancement of electron transportation and photo-catalytic activity for hydrogen generation by introducing spin-polarized current into dye-sensitized photo-catalyst." Catalysis Science & Technology 6, no. 21 (2016): 7693–97. http://dx.doi.org/10.1039/c6cy01880g.

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Implanting polyiodides into graphene not only realized spin-polarization of photo electrons, but induced an optimum Rashba spin–orbit coupling to promote the spin electrons tunneling through the honeycomb sub-lattices of graphene, thus the HER and TOF was highly improved.

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Rashidian, Zeinab, Parvin Bayati, and Zeinab Lorestaniwiess. "Effects of Rashba spin–orbit coupling on the conductance of graphene-based nanoribbons." International Journal of Modern Physics B 31, no. 06 (March 5, 2017): 1750043. http://dx.doi.org/10.1142/s0217979217500436.

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The transmission properties of armchair- and zigzag-edged graphene nanoribbon junctions between graphene electrodes are examined by means of the standard nonequilibrium Green’s function (NEGF) technique. The quantum transport of electrons is studied through a monolayer graphene strip in the presence of Rashba spin–orbit coupling that acts as a barrier between the two normal leads. The present work compares the conductances of nanoribbons with zigzag and armchair edges. Since the nature of induced gap for zigzag edge is different from armchair, it is expected to give rise to different types of conductance for each edge. Findings indicate that the Rashba strength has more pronounced influence on armchair ribbons than on zigzag ribbons, and the minimum conductance of [Formula: see text] for nanoribbon remains intact even in the presence of the Rashba spin–orbit coupling. It is predicted that controllability of spin transport in the monolayer graphene may contribute to the development of well-known spintronics.

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Pudlak, Michal, and R. Nazmitdinov. "Spin Interference Effects in a Ring with Rashba Spin-Orbit Interaction Subject to Strong Light–Matter Coupling in Magnetic Field." Symmetry 14, no. 6 (June 9, 2022): 1194. http://dx.doi.org/10.3390/sym14061194.

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Electron transport through a one-dimensional quantum ring, subjected to Rashba spin–orbit interaction and connected with two external leads, is studied in the presence of external fields. They include the optical radiation, produced by an off-resonant high-frequency electric field, and a perpendicular magnetic field. By means of the Floquet theory of periodically driven quantum systems the interference effects under these fields are described in detail. It is found analytically the specific conditions to reach the spin-filtering effect, caused by the interplay of the external fields and Rashba spin-orbit interaction.

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Bawden, Lewis, Jonathan M. Riley, Choong H. Kim, Raman Sankar, Eric J. Monkman, Daniel E. Shai, Haofei I. Wei, et al. "Hierarchical spin-orbital polarization of a giant Rashba system." Science Advances 1, no. 8 (September 2015): e1500495. http://dx.doi.org/10.1126/sciadv.1500495.

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The Rashba effect is one of the most striking manifestations of spin-orbit coupling in solids and provides a cornerstone for the burgeoning field of semiconductor spintronics. It is typically assumed to manifest as a momentum-dependent splitting of a single initially spin-degenerate band into two branches with opposite spin polarization. Combining polarization-dependent and resonant angle-resolved photoemission measurements with density functional theory calculations, we show that the two “spin-split” branches of the model giant Rashba system BiTeI additionally develop disparate orbital textures, each of which is coupled to a distinct spin configuration. This necessitates a reinterpretation of spin splitting in Rashba-like systems and opens new possibilities for controlling spin polarization through the orbital sector.

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Meng, Yu-Hua, Wei Bai, Heng Gao, Shi-Jing Gong, Ji-Qing Wang, Chun-Gang Duan, and Jun-Hao Chu. "Ferroelectric control of Rashba spin orbit coupling at the GeTe(111)/InP(111) interface." Nanoscale 9, no. 45 (2017): 17957–62. http://dx.doi.org/10.1039/c7nr05550a.

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47

Zhu, Liyan, Tingting Zhang, Guibin Chen, and Huabao Chen. "Huge Rashba-type spin–orbit coupling in binary hexagonal PX nanosheets (X = As, Sb, and Bi)." Physical Chemistry Chemical Physics 20, no. 48 (2018): 30133–39. http://dx.doi.org/10.1039/c8cp05426f.

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Li, Xin, Zhenxiao Fu, Yu He, Xi Yu, Yumeng Yang, and Weimin Li. "Efficient magnetization reversal by self-generated spin–orbit torque in magnetic bulk Rashba materials." Applied Physics Letters 122, no. 11 (March 13, 2023): 112405. http://dx.doi.org/10.1063/5.0134755.

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In this paper, we demonstrate that V0.027Bi0.973TeI, a material with both giant bulk Rashba effect and ferromagnetism, can reverse its magnetization by self-generated spin–orbit torque. Through first-principles calculation, it is found that the giant bulk Rashba effect arises from both bulk space inversion asymmetry and strong spin–orbital coupling, while the ferromagnetism originates from the itinerant d-electrons of doped element vanadium. More importantly, its field-like spin–orbit torque efficiency is determined to be as high as 4.53 × 10−4 mT/(A cm−2), which is more than two orders of magnitude higher than that typically observed in magnetic heterostructures. It is further shown that by using such magnetic bulk Rashba material to form a homogenous spintronic device, the power consumption for magnetization switching can be significantly reduced.

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Farghadan, Rouhollah, and Ali Sehat. "Enhancement of Rashba spin–orbit coupling by electron–electron interaction." RSC Advances 6, no. 82 (2016): 78714–19. http://dx.doi.org/10.1039/c6ra16289d.

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We studied how the electron–electron interaction enhances the strength of the Rashba spin–orbit coupling and opens the possibility of generating a spin-polarized output current from an unpolarized electric current without any magnetic elements.

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Fu, Xi, Wenhu Liao, and Guanghui Zhou. "Spin Accumulation in a Quantum Wire with Rashba Spin-Orbit Coupling." Advances in Condensed Matter Physics 2008 (2008): 1–5. http://dx.doi.org/10.1155/2008/152731.

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We investigate theoretically the spin accumulation in a Rashba spin-orbit coupling quantum wire. Using the scattering matrix approach within the effective free-electron approximation, we have demonstrated the three components of spin polarization. It is found that by a few numerical examples, the two peaks for the out-of-plane spin accumulation〈Sz〉shift to the edges of quantum wire with the increase of propagation modes. The period of intrinsic oscillations〈Sx/y〉inversely proportions to the Rashba SOC strength. This effect may be used to differentiate the intrinsic spin accumulation from the extrinsic one.

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