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Artículos de revistas sobre el tema "Parabolic quantum well"

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Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 20 de febrero de 2023

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1

Gusev, G. M., J. R. Leite, E. B. Olshanetskii, D. K. Maude, M. Cassé, J. C. Portal, N. T. Moshegov y A. I. Toropov. "Quantum hall effect in a wide parabolic quantum well". Brazilian Journal of Physics 29, n.º 4 (diciembre de 1999): 715–18. http://dx.doi.org/10.1590/s0103-97331999000400019.

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2

Gruhn, W. "Magnetic interlayer coupling across parabolic quantum-well". Journal of Physics: Conference Series 79 (1 de agosto de 2007): 012006. http://dx.doi.org/10.1088/1742-6596/79/1/012006.

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3

Kazaryan, Eduard M., Artavazd A. Kostanyan y Hayk A. Sarkisyan. "Impurity optical absorption in parabolic quantum well". Physica E: Low-dimensional Systems and Nanostructures 28, n.º 4 (septiembre de 2005): 423–30. http://dx.doi.org/10.1016/j.physe.2005.05.047.

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4

Shayegan, M., T. Sajoto, J. Jo, M. Santos y L. Engel. "Magnetotransport in a wide parabolic quantum well". Surface Science 229, n.º 1-3 (abril de 1990): 83–87. http://dx.doi.org/10.1016/0039-6028(90)90840-5.

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5

Ishikawa, Takuya, Shinji Nishimura y Kunio Tada. "Quantum-Confined Stark Effect in a Parabolic-Potential Quantum Well". Japanese Journal of Applied Physics 29, Part 1, No. 8 (20 de agosto de 1990): 1466–73. http://dx.doi.org/10.1143/jjap.29.1466.

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6

Chen, W. Q., S. M. Wang, T. G. Andersson y J. Thordson. "Inverse parabolic quantum well and its quantum‐confined Stark effect". Journal of Applied Physics 74, n.º 10 (15 de noviembre de 1993): 6247–50. http://dx.doi.org/10.1063/1.355167.

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7

ZHAO, FENG-QI, XI XIA LIANG y SHILIANG BAN. "ENERGY LEVELS OF A POLARON IN A FINITE PARABOLIC QUANTUM WELL". International Journal of Modern Physics B 15, n.º 05 (20 de febrero de 2001): 527–35. http://dx.doi.org/10.1142/s0217979201004642.

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The effects of the electron–phonon interaction on the electron (or hole) energy levels in parabolic quantum well (PQW) structures are studied. The ground state, the first excited state and the transition energy of the electron (or hole) in the GaAs/Al 0.3 Ga 0.7 As parabolic quantum well are calculated by using a modified Lee–Low–Pines Variational method. The numerical results are given and discussed. A comparison between the theoretical and experimental results is made.
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8

Ruan, Yong-Hong, Qing-Hu Chen y Zheng-Kuan Jiao. "Variational Path-Integral Study on a Bipolaron in a Parabolic Quantum Wire or Well". International Journal of Modern Physics B 17, n.º 22n24 (30 de septiembre de 2003): 4332–37. http://dx.doi.org/10.1142/s0217979203022404.

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The expression of the ground-state energy of a bipolaron in a parabolic quantum wire or well is derived within the framework of Feynman variational path-integral theory. We obtain a general result with arbitrary electron-phonon coupling constant, confining potential strength, and ratio of dielectric constants, which could be used for further numerical calculation of bipolaron properties. Moreover, it is shown that all previous path-integral formula for a bipolaron in a parabolic quantum wire, quantum well or quantum dot can be recovered in the present formalism.
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9

Figarova, S. R., H. I. Huseynov y V. R. Figarov. "Thermoelectric power hysteresis in semi-parabolic quantum well". Thin Solid Films 721 (marzo de 2021): 138554. http://dx.doi.org/10.1016/j.tsf.2021.138554.

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10

Zhang, Hong, Man Shen y Jian-Jun Liu. "Biexciton binding energy in parabolic quantum-well wires". Journal of Applied Physics 103, n.º 4 (15 de febrero de 2008): 043705. http://dx.doi.org/10.1063/1.2874115.

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11

Gusev, G. M., J. R. Leite, E. B. Olshanetskii, N. T. Moshegov, A. I. Toropov, D. K. Maude, M. Casse y J. C. Portal. "Quantum Hall effect in a wide parabolic well". Physica B: Condensed Matter 298, n.º 1-4 (abril de 2001): 306–9. http://dx.doi.org/10.1016/s0921-4526(01)00324-6.

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12

Ba̧k, Zygmunt. "RKKY exchange interaction within the parabolic quantum-well". Solid State Communications 118, n.º 1 (marzo de 2001): 43–46. http://dx.doi.org/10.1016/s0038-1098(01)00029-1.

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13

Sekkal, N., H. Aourag, N. Amrane y B. Soudini. "Resonant tunneling effect through a parabolic quantum well". Physica B: Condensed Matter 215, n.º 2-3 (octubre de 1995): 171–77. http://dx.doi.org/10.1016/0921-4526(95)00392-m.

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14

Niculescu, Ecaterina C. "Donor impurity in a finite parabolic quantum well". Physics Letters A 213, n.º 1-2 (abril de 1996): 85–88. http://dx.doi.org/10.1016/0375-9601(96)00080-1.

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15

Shan, Shu-Ping y Shi-Hua Chen. "Polaron Rashba Effect in a Parabolic Quantum Well". Iranian Journal of Science and Technology, Transactions A: Science 41, n.º 3 (septiembre de 2017): 755–58. http://dx.doi.org/10.1007/s40995-017-0302-1.

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16

Dobson, John F., Jun Wang y Hung M. Le. "Some Experimental Prospects involving Parabolic Quantum Wells". Australian Journal of Physics 53, n.º 1 (2000): 119. http://dx.doi.org/10.1071/ph99048.

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We discuss two possible lines of experimental investigation based on parabolic quantum wells. In the first proposal, we note that the Generalised Kohn Theorem/Harmonic Potential Theorem forbids electron–electron damping of the Kohn mode in an electron layer gas under strictly parabolic confinement. This applies even for very strong driving. It is therefore interesting to attempt reduction of other sources of broadening in GaAlAs parabolic wells, so as to achieve a prominent narrow resonance in the far infrared. We concentrate here on phononic bandgap structures, which may be of interest for reduction of phonon effects in other systems as well. The second class of proposed experiment involves twinned parabolic wells in an attempt to observe van der Waals forces directly in GaAlAs systems. In a first approximation, the parabolic or Hooke's-law nature of the confinement allows one to use the well as a kind of spring balance to measure the weak van der Waals force. The influence of an applied magnetic field on these forces appears to be significant, and this system might provide the first measurement of such an effect.
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17

Yu, You Bin. "Third-Harmonic Generation in Special Parabolic Quantum Wells". Advanced Materials Research 760-762 (septiembre de 2013): 392–96. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.392.

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Third-harmonic generation in a special asymmetric quantum well is investigated. The third-harmonic generation coefficient is carried out by applying compact-density-matrix method. The numerical results are presented for a GaAs/AlGaAs asymmetric quantum well. The very large third-harmonic generation coefficient is obtained in this quantum well. Moreover, the third-harmonic generation coefficient dependents on the quantum well parameters are investigated, respectively.
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18

Xu, Gang y Ye Lu He. "Energy Level Width of 2DEG in Different Well in Mesoscopic System". Advanced Materials Research 706-708 (junio de 2013): 395–98. http://dx.doi.org/10.4028/www.scientific.net/amr.706-708.395.

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Applying theories on quasi-classical particles and the uncertainty relation of quantum mechanics, we get the formula of uncertainty and energy level width in triangular well and parabolic well of two dimension electron gas (2DEG).Based on these ,we find energy width will increase along with the increasing of electronic field intensity and quantum number at the same electronic field, the energy width of parabolic well is more narrow than width of triangular well. At the same time, the result of this paper is agreement with the experiment.
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19

Guimarães, L. G. y Rosana B. Santiago. "Finite parabolic quantum wells under crossed electric and magnetic fields: a double-quantum-well problem". Journal of Physics: Condensed Matter 10, n.º 43 (2 de noviembre de 1998): 9755–62. http://dx.doi.org/10.1088/0953-8984/10/43/019.

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20

ZHANG, LI y HONG-JING XIE. "ELECTRO-OPTIC EFFECT IN A SEMI-PARABOLIC QUANTUM WELL WITH AN APPLIED ELECTRIC FIELD". Modern Physics Letters B 17, n.º 09 (20 de abril de 2003): 347–54. http://dx.doi.org/10.1142/s0217984903005366.

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By using the compact density matrix approach, the electro-optic effect (EOE) in a semi-parabolic quantum well (QW) with an applied electric field has been theoretically investigated. Via a variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field are obtained. Numerical results on typical GaAs material reveal that the electro-optic effect nearly linearly increases with the increasing of magnitude of the electric field, but it monotonously decreases with the increasing of confining potential frequency of the semi-parabolic QW. The EOE in the model investigated is 102 times larger than that in the symmetric parabolic QW under the same electric field and the same frequency of parabolic confining potential, which is due to the self-asymmetry of the system and the electric field effect.
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21

ZHAO, FENG-QI y ZI-ZHENG GUO. "ELECTRIC FIELD EFFECTS ON POLARONS WITH SPATIALLY DEPENDENT MASS IN PARABOLIC QUANTUM WELLS". International Journal of Modern Physics B 18, n.º 22 (20 de septiembre de 2004): 2991–99. http://dx.doi.org/10.1142/s0217979204026354.

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The free polaron energy levels in finite GaAs / Al x Ga 1-x As parabolic quantum wells have been investigated by a modified variational method. The effect of the electric field, the electron-phonon interaction including the longitudinal optical phonons and the four branches of interface optical phonons, and the effect of spatial dependent effective mass have been considered in the calculation. The dependence of the energies of free polarons on the alloy composition x is given. The numerical results for finite GaAs / Al x Ga 1-x As parabolic quantum wells are obtained and discussed. The results show that the effect of the electric field and the interface optical phonons as well as the longitudinal optical phonons on the energy levels is obvious. One can find that the effect of the spatially dependent effective masses on the energy levels in finite parabolic quantum wells is considerable except for large well width. Thus, the electron-phonon interaction and the effect of the spatially dependent effective mass should not be neglected for the study of the electron state problem in finite parabolic quantum wells.
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22

Sundaram, M., S. J. Allen, M. R. Geller, P. F. Hopkins, K. L. Campman y A. C. Gossard. "Infrared absorption of holes in a parabolic quantum well". Applied Physics Letters 65, n.º 17 (24 de octubre de 1994): 2226–28. http://dx.doi.org/10.1063/1.112771.

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23

Sundaram, M., S. J. Allen, M. R. Geller, K. L. Campman y A. C. Gossard. "Plasmons in a superlattice in a parabolic quantum well". Applied Physics Letters 67, n.º 21 (20 de noviembre de 1995): 3165–67. http://dx.doi.org/10.1063/1.115150.

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24

John Peter, A. y K. Navaneethakrishnan. "Metal–insulator transition in a semimagnetic parabolic quantum well". Physica E: Low-dimensional Systems and Nanostructures 36, n.º 1 (enero de 2007): 45–51. http://dx.doi.org/10.1016/j.physe.2006.07.046.

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25

Luna-Acosta, Germán A. "Hydrogenic impurities in superlattices with parabolic quantum well potentials". Solid State Communications 55, n.º 1 (julio de 1985): 5–8. http://dx.doi.org/10.1016/0038-1098(85)91093-2.

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26

Peter, A. John y Zheng Jin-Liang. "Spin Polaron in a Diluted Parabolic Magnetic Quantum Well". Communications in Theoretical Physics 53, n.º 4 (abril de 2010): 782–86. http://dx.doi.org/10.1088/0253-6102/53/4/37.

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27

Halonen, V. "Collapse of the fractional quantum Hall effect in a parabolic quantum well". Physical Review B 47, n.º 15 (15 de abril de 1993): 10001–4. http://dx.doi.org/10.1103/physrevb.47.10001.

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28

Bell, L., J. Rogers, J. N. Heyman, J. D. Zimmerman y A. C. Gossard. "Terahertz emission by quantum beating in a modulation doped parabolic quantum well". Applied Physics Letters 92, n.º 14 (7 de abril de 2008): 142108. http://dx.doi.org/10.1063/1.2908868.

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29

Ensslin, K., M. Sundaram, A. Wixforth, J. H. English y A. C. Gossard. "Suppression and recovery of quantum Hall plateaus in a parabolic quantum well". Physical Review B 43, n.º 12 (15 de abril de 1991): 9988–91. http://dx.doi.org/10.1103/physrevb.43.9988.

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30

Bau, Nguyen Quang, Nguyen Van Hieu y Nguyen Vu Nhan. "The quantum acoustomagnetoelectric field in a quantum well with a parabolic potential". Superlattices and Microstructures 52, n.º 5 (noviembre de 2012): 921–30. http://dx.doi.org/10.1016/j.spmi.2012.07.023.

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31

Yu, G., S. A. Studenikin, A. J. SpringThorpe, G. C. Aers y D. G. Austing. "Quantum and transport mobilities in an AlGaAs∕GaAs parabolic quantum-well structure". Journal of Applied Physics 97, n.º 10 (15 de mayo de 2005): 103703. http://dx.doi.org/10.1063/1.1891277.

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32

NICULESCU, ECATERINA C. y LILIANA BURILEANU. "EXCITONS IN A NARROW PARABOLIC QUANTUM WELL UNDER EXTERNAL FIELDS". Modern Physics Letters B 17, n.º 24 (20 de octubre de 2003): 1253–64. http://dx.doi.org/10.1142/s0217984903006281.

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The effects of electric and magnetic fields on the ground (1S-like) and excited (2S-like) states of an exciton in a narrow GaAs/Al x Ga 1-x As parabolic quantum well are studied. The effective-mass approximation within a perturbation-variational scheme is adopted. We find that the hole-mass anisotropy and nonparabolicity of the conduction band significantly modify the electron properties in such structures in which the quantum confinement plays a fundamental role. The effect of the electric field on the spatial distribution of the electron and hole is also investigated. In the low field regime, the diamagnetic shift of the exciton energies is calculated.
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33

Halonen, V. "Fractional quantum Hall effect in a parabolic quantum well in tilted magnetic fields". Physical Review B 47, n.º 7 (15 de febrero de 1993): 4003–6. http://dx.doi.org/10.1103/physrevb.47.4003.

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34

Molinar-Tabares, Martín E. y Germán Campoy-Güereña. "Application of the Double Parabolic Quantum Well in a Laser". Journal of Computational and Theoretical Nanoscience 7, n.º 11 (1 de noviembre de 2010): 2308–13. http://dx.doi.org/10.1166/jctn.2010.1612.

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35

Tada, Kunio, Shinji Nishimura y Takuya Ishikawa. "Polarization‐independent optical waveguide intensity switch with parabolic quantum well". Applied Physics Letters 59, n.º 22 (25 de noviembre de 1991): 2778–80. http://dx.doi.org/10.1063/1.105857.

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36

Wang, Lihong, Yun Zhu, Fanan Zeng, Hui Lin Zhao y Shechao Feng. "Anisotropic spectra of magnetoplasmons in wide parabolic quantum-well systems". Physical Review B 47, n.º 24 (15 de junio de 1993): 16326–32. http://dx.doi.org/10.1103/physrevb.47.16326.

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37

Wendler, L. y R. Haupt. "Plasmons in imperfect parabolic quantum-well wires: Self-consistent calculations". Physical Review B 52, n.º 12 (15 de septiembre de 1995): 9031–43. http://dx.doi.org/10.1103/physrevb.52.9031.

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38

Hien, Nguyen D., C. A. Duque, E. Feddi, Nguyen V. Hieu, Hoang D. Trien, Le T. T. Phuong, Bui D. Hoi et al. "Magneto-optical effect in GaAs/GaAlAs semi-parabolic quantum well". Thin Solid Films 682 (julio de 2019): 10–17. http://dx.doi.org/10.1016/j.tsf.2019.04.049.

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39

Hung, Bui Duc, Nguyen Thi Thanh Nhan, Nguyen Quang Bau y Nguyen Vu Nhan. "Photostimulated Radio Electrical Longitudinal Effect in a Parabolic Quantum Well". Journal of Physics: Conference Series 537 (23 de septiembre de 2014): 012003. http://dx.doi.org/10.1088/1742-6596/537/1/012003.

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40

Phuc, Huynh Vinh, Doan Quoc Khoa, Nguyen Van Hieu y Nguyen Ngoc Hieu. "Linear and nonlinear magneto-optical absorption in parabolic quantum well". Optik 127, n.º 22 (noviembre de 2016): 10519–26. http://dx.doi.org/10.1016/j.ijleo.2016.08.070.

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41

Liu Jian, Zhang Hong, Zhang Chun-Yuan y Zhang Hui-Liang. "Charged excitons in parabolic quantum-well wires under magnetic filed". Acta Physica Sinica 60, n.º 7 (2011): 077301. http://dx.doi.org/10.7498/aps.60.077301.

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42

Santiago, R. B. y L. G. Guimar�es. "Parabolic Quantum Well of Diluted Magnetic Semiconductor under Crossed Fields". physica status solidi (b) 232, n.º 1 (julio de 2002): 152–58. http://dx.doi.org/10.1002/1521-3951(200207)232:1<152::aid-pssb152>3.0.co;2-1.

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43

Geisselbrecht, W., A. Masten, O. Gräbner, M. Forkel, G. H. Döhler, K. Campman y A. C. Gossard. "Electro-optic effects in GaAs/AlGaAs parabolic quantum well structures". Superlattices and Microstructures 23, n.º 1 (enero de 1998): 93–96. http://dx.doi.org/10.1006/spmi.1996.0312.

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44

Wu, Ren Tu Ya y Qi Zhao Feng. "Polaronic Effects in Wurtzite InxGa1-xN/GaN Parabolic Quantum Well". Advanced Materials Research 629 (diciembre de 2012): 145–51. http://dx.doi.org/10.4028/www.scientific.net/amr.629.145.

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The energy levels of polaron in a wurtzite InxGa1-xN/GaN parabolic quantum well are investigated by adopting a modified Lee-Low-Pines variational method. The ground state energy, the transition energy and the contributions of different branches of optical phonon modes to the ground state energy as functions of the well width are given. The effects of the anisotropy of optical phonon modes and the spatial dependence effective mass, dielectric constant, phonon frequency on energy levels are considered in calculation. In order to compare, the corresponding results in zinc-blende parabolic quantum well are given. The results indicate that the contributions of the electron-optical phonon interaction to ground state energy of polaron in InxGa1-xN/GaN is very large, and make the energy of polaron reduces. For a narrower quantum well，the contributions of half-space optical phonon modes is large , while for a wider one, the contributions of the confined optical phonon modes are larger. The ground state energy and the transition energy of polaron in wurtzite InxGa1-xN/GaN are smaller than that of zinc-blende InxGa1-xN/GaN, and the contributions of the electron-optical phonon interaction to ground state energy of polaron in wurtzite InxGa1-xN/GaN are greater than that of zinc-blende InxGa1-xN/GaN. The contributions of the electron-optical phonon interaction to ground state energy of polaron in wurtzite InxGa1-xN/GaN (about from 22 to 32 meV) are greater than that of GaAs/AlxGa1-xAs parabolic quantum well (about from 1.8 to 3.2 meV). Therefore, the electron-optical phonon interaction should be considered for studying electron state in InxGa1-xN/GaN parabolic quantum well.
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45

Zhao, Feng Qi y Zhao Bo. "The Influence of Hydrostatic Pressure on the Binding Energy of Hydrogenic Impurity State in a Wurtzite AlyGa1-yN/AlxGa1-xN Parabolic Quantum Well". Solid State Phenomena 310 (septiembre de 2020): 14–21. http://dx.doi.org/10.4028/www.scientific.net/ssp.310.14.

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The influence of hydrostatic pressure on the binding energy of hydrogenic impurity state in a wurtzite AlyGa1-yN/AlxGa1-xN parabolic quantum well and GaN/AlxGa1-xN square quantum well are studied using the variational method. The ground-state binding energies are presented as the functions of hydrostatic pressure, well width, composition and impurity center position. The anisotropic properties of the parameters in the system, and the changes (dependence) of electron effective mass, the dielectric constant, band gap with pressure and coordinate are considered in the numerical calculations. The results show that the hydrostatic pressure has obvious influence on the binding energy. The binding energy increase slowly with increasing the hydrostatic pressure p and the composition x, while the binding energy decrease significantly with increasing the well width and the position of impurity center. It is seen that the changing trends of the binding energy as a function of well width, pressure and the composition in the AlyGa1-yN/AlxGa1-xN parabolic quantum well are basically the same with that in the GaN/AlxGa1-xN square quantum well, but the changing trends of the binding energy as a function of impurity center position in the AlyGa1-yN/AlxGa1-xN parabolic quantum well are significantly greater than that in the GaN/AlxGa1-xN square quantum well.
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46

IHN, THOMAS, CHRISTOPH ELLENBERGER, KLAUS ENSSLIN, CONSTANTINE YANNOULEAS, UZI LANDMAN, DAN C. DRISCOLL y ART C. GOSSARD. "QUANTUM DOTS BASED ON PARABOLIC QUANTUM WELLS: IMPORTANCE OF ELECTRONIC CORRELATIONS". International Journal of Modern Physics B 21, n.º 08n09 (10 de abril de 2007): 1316–25. http://dx.doi.org/10.1142/s0217979207042781.

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We present measurements and theoretical interpretation of the magnetic field dependent excitation spectra of a two-electron quantum dot. The quantum dot is based on an Al x Ga 1-x As parabolic quantum well with effective g⋆-factor close to zero. Results of tunneling spectroscopy of the four lowest states are compared to exact diagonalization calculations and a generalized Heitler–London approximation and good agreement is found. Electronic correlations, associated with the formation of an H 2-type Wigner molecule, turn out to be very important in this system.
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47

Ozturk, Emine y Ismail Sokmen. "Nonlinear intersubband transitions in a parabolic and an inverse parabolic quantum well under applied magnetic field". Journal of Luminescence 145 (enero de 2014): 387–92. http://dx.doi.org/10.1016/j.jlumin.2013.08.011.

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48

CRUZ, H., A. HERŃANDEZ-CABRERA y A. MUÑOZ. "TUNNELING ESCAPE TIME OF ELECTRONS FROM A PARABOLIC QUANTUM WELL IN DOUBLE BARRIER HETEROSTRUCTURES". Modern Physics Letters B 05, n.º 04 (20 de febrero de 1991): 293–300. http://dx.doi.org/10.1142/s0217984991000344.

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We have calculated tunneling escape time of electrons from a compositionally graded parabolic quantum well under an external electric field using a method of calculation based on Airy functions and the transfer matrix approach. It is found that tunneling escape time decreases exponentially with decreasing barrier thickness.
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49

Hu, Xi Duo, Cheng Ming Li y Shao Yan Yang. "Electron Mobility due to Surface Roughness Scattering in Depleted GaAs Free-Standing Thin Ribbon". Materials Science Forum 954 (mayo de 2019): 51–59. http://dx.doi.org/10.4028/www.scientific.net/msf.954.51.

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Abstract:Electron mobility limited by surface roughness scattering in free-standing GaAs thin ribbon with an internal parabolic quantum well caused by surface state is investigated in detail. Based on analyzing the parabolic quantum well including the energy subband level, wave function and the confined potential profile in the thin ribbon by solving Schrödinger and Poisson equations self-consistently, the electron mobility could be investigated. Conclusion indicates that remote surface roughness (RSR) of the thin ribbon will change the two dimensional electron gas (2DEG) mobility through the medium of barrier height fluctuation of the parabolic well in atomic scale. Calculation results reveal that the 2DEG mobility decreases with increasing roughness amplitude, which is characterized in terms of the surface roughness height and the roughness lateral size.
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Huang, Zheng. "Rashba Spin-Orbit Effect on Traversal Time in Parabolic-Well Magnetic Tunneling Junction". Applied Mechanics and Materials 707 (diciembre de 2014): 338–42. http://dx.doi.org/10.4028/www.scientific.net/amm.707.338.

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Based on the phase time definition,we study theoretically the transmission coefficients and the spin-tunneling time in parabolic-well magnetic tunneling junction with a tunnel barrier in the presence of Rashba spin-orbit interaction. The significant quantum size, quantum coherence, and Rashba spin-orbit interaction are considered simultaneously. It is found that the tunneling time strongly depends on the spin orientation of tunneling electrons. We also find that as the length of the semiconductor increases, the spin tunneling time shows curved increase. It exhibits useful instructions for the design of spin electronic devices.
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