Academic literature on the topic 'Rashba spin-orbit couplings'
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Journal articles on the topic "Rashba spin-orbit couplings"
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.
Full textEryzhenkov, 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.
Full textDell’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.
Full textGuo, 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.
Full textGong, 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.
Full textLiu, 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.
Full textVartanian, 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.
Full textImura, 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.
Full textYou, 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.
Full textVartanian, 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.
Full textDissertations / Theses on the topic "Rashba spin-orbit couplings"
Guillet, Thomas. "Tuning the spin-orbit coupling in Ge for spin generation, detection and manipulation." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALY033.
Full textOne of the main goals of spintronics is to achieve the spin transistor operation and for this purpose, one has to successfully implement a platform where spin currents can be easily injected, detected and manipulated at room temperature. In this sense, this thesis work shows that Germanium is a very good candidate thanks to its unique spin and optical properties as well as its compatibility with Silicon-based nanotechnology.Throughout the years, several spin injection and detection schemes were achieved in Ge but the electrical manipulation of the spin orientation is still a missing part. Recently we focused on two approaches in order to tune the spin-orbit interaction (SOI) in a Ge-based platform. Both rely on the structural inversion asymmetry and the spin-orbit coupling at surfaces and interfaces with germanium (111). First, we performed the epitaxial growth of the topological insulator (TI) Bi2Se3 on Ge (111). After characterizing the structural and electrical properties of the Bi2Se3/Ge heterostructure, we developed an original method to probe the spin-to-charge conversion at the interface between Bi2Se3and Ge by taking advantage of the Ge optical properties. The results showed that the hybridization between the Ge and TI surface states could pave the way for implementing an efficient spin manipulation architecture.The latter approach is to exploit the intrinsic SOI of Ge (111). By investigating the electrical properties of a thin Ge(111) film epitaxially grown on Si(111), we found a large unidirectional Rashba magnetoresistance, which we ascribe to the interplay between the externally applied magnetic field and the current-induced pseudo-magnetic field in the spin-splitted subsurface states of Ge (111). The unusual strength and tunability of this UMR effect open the door towards spin manipulation with electric fields in an all-semiconductor technology platform.In a last step, I integrated perpendicularly magnetized (Co/Pt) multilayers-based magnetic tunnel junctions on the Ge (111) platform. I developed an original electro-optical hybrid technique to detect electrically the magnetic circular dichroism in (Co/Pt) and perform magnetic imagingThese MTJs were then used to perform spin injection and detection in a lateral spin valve device. The perpendicular magnetic anisotropy (PMA) allowed to generate spin currents with the spin oriented perpendicular to the sample plane.Finally, I assembled all these building blocks that were studied during my PhD work to build a prototypical spin transistor. The spin accumulation was generated either optically or electrically, using optical spin orientation in germanium or the injection from the magnetic tunnel junction
Avetisyan, Siranush Jr. "Fock-Darwin states of anisotropic quantum dots with Rashba spin-orbit coupling." American Physical Society, 2012. http://hdl.handle.net/1993/23604.
Full textNaseri, Jorshari Amin [Verfasser]. "Interacting Electrons in Quantum Dots with Strong Rashba Spin-Orbit Coupling / Amin Naseri Jorshari." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2016. http://d-nb.info/1105645363/34.
Full textHernangomez, Perez Daniel. "Spin-orbit Coupling and Strong Interactions in the Quantum Hall Regime." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENY087.
Full textThe quantum Hall effect, appearing in disordered two-dimensional electron gases under strong perpendicular magnetic fields and low temperatures, has been a subject of intense research during the last thirty years due to its very spectacular macroscopic quantum transport properties. In this thesis, we expand the theoretical horizon by analytically considering the effects of spin-orbit coupling and strong electron-electron interaction in these systems.In the first part of the manuscript, we examine the simultaneous effect of Rashba spin-orbit and Zeeman interaction in the integer quantum Hall regime. Under these conditions, we extend a coherent-state vortex Green's function formalism to take into account the coupling between orbital and spin degrees of freedom within the electronic drift states. As a first application of this framework, we analytically compute controlled microscopic nonperturbative quantum functionals, such as the energy spectrum and the local density of states, in arbitrary locally flat electrostatic potential landscapes, which are then analyzed in detail in different temperature regimes and compared to scanning tunnelling experimental data. As a second application, we thoroughly study local equilibrium charge and spin transport properties and derive analytical useful formulas which incorporate the mixed non-relativistic and relativistic character of Rashba-coupled electron gases.In the second part of this thesis, we deal with the problem of analytically incorporating strong electron-electron interactions in the fractional quantum Hall regime. To this purpose, we consider a generalized two-body problem where both disorder and correlations are combined and introduce a new vortex coherent-state representation of the two-body states that naturally include long-range correlations between the electrons. The novelty of this theory is that correlations are topologically built in through the non-Euclidean metric of the Hilbert space. Next, we show that this kind of vortex states form a basis of an enlarged Hilbert space and derive the equation of motion for the Green's function in this representation. Finally, we check the consistency of our approach for any Landau level of the pair and discuss the necessity of going beyond the semiclassical (infinite magnetic field) approximation to obtain energy gaps within each energy level
Mirhosseini, Hossein Verfasser], Jürgen [Akademischer Betreuer] Henk, Wolfram [Akademischer Betreuer] [Hergert, and Evgueni [Akademischer Betreuer] Chulkov. "Ab initio investigations of the Rashba spin-orbit coupling in the electronic structure of surfaces / S. Hossein Mirhosseini. Betreuer: Jürgen Henk ; Wolfram Hergert ; Evgueni Chulkov." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2010. http://d-nb.info/1025135679/34.
Full textPossanner, Stefan. "Modeling and simulation of spin-polarized transport at the kinetic and diffusive level." Toulouse 3, 2012. http://thesesups.ups-tlse.fr/1735/.
Full textThe aim of this thesis is to contribute to the understanding of spin-induced phenomena in electron motion. These phenomena arise when electrons move through a (partially) magnetic environment, in such a way that its magnetic moment (spin) may interact with the surroundings. The pure quantum nature of the spin requires transport models that deal with effects like quantum coherence, entanglement (correlation) and quantum dissipation. On the meso- and macroscopic level it is not yet clear under which circumstances these quantum effects may transpire. The purpose of this work is, on the one hand, to derive novel spin transport models from basic principles and, on the other hand, to develop numerical algorithms that allow for a solution of these new and other existing model equations. The thesis consists of four parts. The first part has introductory character; it comprises an overview of fundamental spin-related concepts in electronic transport such as the giant-magneto-resistance (GMR) effect, the spin-transfer torque in metallic magnetic multilayers and the matrix-character of transport equations that take spin-coherent electron states into account. Special emphasis is placed on the modeling of the spin-transfer torque which represents the intersection of these concepts. In particular, we consider the diffusive Zhang-Levy-Fert (ZLF) model, an exchange-torque model that consists of the Landau-Lifshitz equation and a heuristic matrix spin-diffusion equation. A finite difference scheme based on Strang operator splitting is developed that enables a numerical, self-consistent solution of this non-linear system within multilayer structures. Finally, the model is tested by comparison of numerical results to recent experimental data. Parts two and three are the thematic core of this thesis. In part two we propose a matrix-Boltzmann equation that allows for the description of spin-coherent electron transport on a kinetic level. The novelty here is a linear collision operator in which the transition rates from momentum k to momentum k' are modeled by a 2x2 Hermitian matrix; hence the mean-free paths of spin-up and spin-down electrons are represented by the eigenvalues of this scattering matrix. After a formal derivation of the matrix-Vlasov equation as the semi-classical limit of the one-electron Wigner equation, the ensuing kinetic equation is studied with regard to existence, uniqueness and positive semi-definiteness of a solution. Furthermore, the new collision operator is investigated rigorously and the diffusion limit tc -> 0 of the mean scattering time is performed. The obtained matrix drift-diffusion equations are an improvement over the heuristic spin-diffusive model treated in part one. The latter is obtained in the limit of identical eigenvalues of the scattering matrix. Part three is dedicated to a first step towards the derivation of the matrix collision operator, introduced in part two, from first principles. For this, we augment the von Neumann equation of a composite quantum system by a dissipative term that relaxes the total state operator towards the Born approximation. Under the premise that the relaxation is the dominant process we obtain a hierarchy of non-Markovian master equations. The latter arises from an expansion of the total state operator in powers of the relaxation time tr. In the Born-Markov limit tr -> 0 the Lindblad master equation is recovered. It has the same structure as the collision operator proposed in part two heuristically. However, the Lindblad equation is still a microscopic equation; thus the next step would be to carry out the semi-classical limit of the result obtained. In part four we perform a numerical study of a quantum-diffusive, two-component spin model of the transport in a two-dimensional electron gas with Rashba spin-orbit coupling. This model assumes the electrons to be in a quantum equilibrium state in the form of a Maxwellian operator. We present two space-time discretizations of the model which also comprise the Poisson equation. In a first step pure time discretization is applied in order to prove the well-posedness of the two schemes, both of which are based on a functional formalism to treat the non-local relations between spin densities via the chemical potentials. We then use fully space-time discrete schemes to simulate the dynamics in a typical transistor geometry. Finite difference approximations applied in these schemes are first order in time and second order in space. The discrete functionals introduced are minimized with the help of a conjugate gradient-based algorithm in which the Newton method is applied to find the desired line minima
Haspot, Victor. "Exploitation d’hétérostructures d’oxydes intégrant La₂⁄₃Sr₁⁄₃MnO₃ pour des applications spin-orbitroniques et magnoniques." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP079.
Full textClassical spintronic devices use the exchange interaction between conduction electron spins and local spins in magnetic materials to create spin-polarized currents, or to manipulate nanomagnets by spin transfer from spin-polarized currents. A novel direction of spintronics –called spin-orbitronics - exploits the spin-orbit coupling in nonmagnetic materials instead of the exchange interaction in magnetic materials to generate, detect or exploit spin-polarized currents. Another one –magnonics- explores the potential of spin waves to carry and process information in magnetic nanostructures. For a broad range of applications in both fields, materials with ultralow magnetic damping values are required. In this thesis we first explored the potential of the half metallic material La₂⁄₃Sr₁⁄₃MnO₃ (LSMO) to obtain very low damping. We studied the effect of strain and temperature on the damping of LSMO thin films. Subsequently, LSMO films were used as spin-current injectors in spin-orbitronic heterostructures. In those we also studied the opportunity to control the spin-charge interconversion by adding a ferroelectric material, BiFeO₃ (BFO) by exploiting the interface effects. Finally, we explored the potential of LSMO/BFO bilayers for reprogrammable magnonic crystals
Nilwala, Gamaralalage Premasiri Kasun Viraj Madusanka. "Electron Transport in Chalcogenide Nanostructures." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1572259784431038.
Full textYamamoto, Masayuki [Verfasser]. "Spin-dependent electronic transport in nanowires in the presence of Rashba and Dresselhaus spin-orbit couplings / vorgelegt von Masayuki Yamamoto." 2007. http://d-nb.info/986274429/34.
Full textSeshadri, Ranjani. "Living on the Edge A Study of Boundary Modes In Two-dimensional Topological Systems." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5384.
Full textBooks on the topic "Rashba spin-orbit couplings"
Gariglio, S., M. S. Scheurer, J. Schmalian, A. M. R. V. L. Monteiro, S. Goswami, and A. D. Caviglia. Surface and Interface Superconductivity. Edited by A. V. Narlikar. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780198738169.013.7.
Full textBook chapters on the topic "Rashba spin-orbit couplings"
Fu, Xi. "Spin Current in a GaAs 2DEG with the Coexistence of Rashba Spin-Orbit Coupling and Magnetic Field." In Future Control and Automation, 489–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-31003-4_63.
Full textMughnetsyan, Vram, Aram Manaselyan, Manuk Barseghyan, Albert Kirakosyan, Laura M. Pérez, and David Laroze. "Electronic and Magnetic Properties of Laser Dressed Quantum Dot and Ring with Rashba Spin-Orbit Coupling." In Springer Proceedings in Physics, 145–54. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-11287-4_12.
Full textSimion, George E., and Gabriele F. Giuliani. "Chirality, charge and spin-density wave instabilities of a two-dimensional electron gas in the presence of Rashba spin-orbit coupling." In No-nonsense Physicist, 125–46. Pisa: Scuola Normale Superiore, 2016. http://dx.doi.org/10.1007/978-88-7642-536-3_10.
Full textMoskalenko, S. A., I. V. Podlesny, E. V. Dumanov, M. A. Liberman, and I. Lelyakov. "Two-Dimensional Cavity Polaritons under the Influence of the Landau Quantization, Rashba Spin-Orbit Coupling and Zeeman Splitting." In 3rd International Conference on Nanotechnologies and Biomedical Engineering, 35–39. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-287-736-9_8.
Full textChesi, Stefano, and Gabriele F. Giuliani. "In-plane ferromagnetic instability in a two-dimensional electron liquid in the presence of Rashba spin-orbit coupling." In No-nonsense Physicist, 61–71. Pisa: Scuola Normale Superiore, 2016. http://dx.doi.org/10.1007/978-88-7642-536-3_5.
Full textVyasanakere, Jayantha P. "Rashba-spin-orbit Coupling in Interacting Fermi Gases." In Synthetic Spin-Orbit Coupling in Cold Atoms, 125–75. WORLD SCIENTIFIC, 2018. http://dx.doi.org/10.1142/9789813272538_0003.
Full textManchon, Aurelien. "Rashba spin–orbit coupling in two-dimensional systems." In Spintronic 2D Materials, 25–64. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-08-102154-5.00002-3.
Full textConference papers on the topic "Rashba spin-orbit couplings"
Li, You-Quan. "Spin current and spin Hall effects." In Workshop on Entanglement and Quantum Decoherence. Washington, D.C.: Optica Publishing Group, 2008. http://dx.doi.org/10.1364/weqd.2008.asi1.
Full textPlotnik, Y., M. C. Rechtsman, S. Stützer, Y. Lumer, S. Nolte, A. Szameit, and M. Segev. "Rashba Effective Spin-Orbit Coupling In Photonic Lattices." In CLEO: QELS_Fundamental Science. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/cleo_qels.2014.ff2d.2.
Full textMoayed, Mohammad Mehdi Ramin, Thomas Bielewicz, Martin Sebastian Zoellner, Carmen Herrmann, and Christian Klinke. "Rashba Spin-Orbit Coupling in Colloidal Lead Sulfide Nanosheets." In Novel Optical Materials and Applications. Washington, D.C.: OSA, 2017. http://dx.doi.org/10.1364/noma.2017.notu1c.3.
Full textPrabhakar, S., R. Melnik, and A. Sebetci. "Rashba spin-orbit coupling effects in armchair graphene nanoribbons." In 4TH INTERNATIONAL CONGRESS IN ADVANCES IN APPLIED PHYSICS AND MATERIALS SCIENCE (APMAS 2014). AIP Publishing LLC, 2015. http://dx.doi.org/10.1063/1.4914279.
Full textSchmidt, Thomas. "Correlated electrons in nanowires with Rashba spin-orbit coupling (Conference Presentation)." In Spintronics XII, edited by Henri-Jean M. Drouhin, Jean-Eric Wegrowe, and Manijeh Razeghi. SPIE, 2019. http://dx.doi.org/10.1117/12.2528425.
Full textRamin Moayed, M. M., T. Bielewicz, M. S. Zoellner, C. Herrmann, and C. Klinke. "Tailoring the Rashba Spin-Orbit Coupling in Colloidal Lead Sulfide Nanosheets." In 2017 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 2017. http://dx.doi.org/10.7567/ssdm.2017.j-2-05.
Full textWu, B. H., and J. C. Cao. "Spin transport through a multimode quantum wire with Rashba spin orbit coupling under terahertz radiation." In >2006 Joint 31st International Conference on Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics. IEEE, 2006. http://dx.doi.org/10.1109/icimw.2006.368442.
Full textimamura, Hiroshi. "Twisted exchange interaction between localized spins in presence of Rashba spin-orbit coupling." In PHYSICS OF SEMICONDUCTORS: 27th International Conference on the Physics of Semiconductors - ICPS-27. AIP, 2005. http://dx.doi.org/10.1063/1.1994642.
Full textYOKOYAMA, T., Y. TANAKA, and J. INOUE. "TUNNELING CONDUCTANCE IN 2DEG/S JUNCTIONS IN THE PRESENCE OF RASHBA SPIN-ORBIT COUPLING." In Proceedings of the International Symposium. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812814623_0019.
Full textHo, C., and M. B. Jalil. "Spin motive force and generation of pure spin current in ferromagnetic ring under time modulation and Rashba spin orbit coupling." In 2015 IEEE International Magnetics Conference (INTERMAG). IEEE, 2015. http://dx.doi.org/10.1109/intmag.2015.7157180.
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