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We study a two-dimensional electron system in the presence of both Rashba and Dresselhaus spin-orbit interactions in a perpendicular magnetic field. Defining two suitable boson operators and using the unitary transformations we are able to…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Degang Zhang

The spin-orbit interaction in heavy hole gas formed at $p$-doped semiconductor heterojunctions and electron gas at {\mbox SrTiO}${}_3$ surfaces is cubic in momentum. Here we report magnetotransport properties of k-cubic Rashba spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2014-09-15 Alestin Mawrie , Tutul Biswas , Tarun Kanti Ghosh

We have investigated beating patterns in Shubnikov-de Haas oscillations for HgTe/Hg_{0.3}Cd_{0.7}Te(001) quantum wells with electron densities of 2 to 3 X 10^{12} cm^{-2}. Up to 12 beating nodes have been observed at magnetic fields between…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Y. S. Gui , C. R. Becker , N. Dai , J. Liu , Z. J. Qiu , E. G. Novik , M. Schaefer , X. Z. Shu , J. H. Chu , H. Buhmann , L. W. Molenkamp

We study transport properties of a two-dimensional electron system with Rashba spin-orbit coupling in a perpendicular magnetic field. The spin orbit coupling competes with Zeeman splitting to introduce additional degeneracies between…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Shun-Qing Shen , Michael Ma , X. C. Xie , Fu Chun Zhang

We investigate the spin-dependent transport properties of two-dimensional electron gas (2DEG) systems formed in diluted magnetic semiconductors and in the presence of Rashba spin-orbit interaction in the framework of the scattering matrix…

Materials Science · Physics 2009-11-13 Anh T. Ngo , J. M. Villas-Boas , Sergio E. Ulloa

Spin-spin correlation function response in the low electronic density regime and externally applied electric field is evaluated for 2D metallic crystals under Rashba-type coupling, fixed number of particles and two-fold energy band…

Strongly Correlated Electrons · Physics 2017-10-06 H. Vivas

Exact wave functions and energy levels are obtained for an electron in a two-dimensional semiconductor circular quantum ring with a confining potential of finite depth in the presence of both an external magnetic field and the Rashba…

Mathematical Physics · Physics 2012-12-07 V. V. Kudryashov , A. V. Baran

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the…

Mesoscale and Nanoscale Physics · Physics 2011-08-30 Santanu K. Maiti , Moumita Dey , Shreekantha Sil , Arunava Chakrabarti , S. N. Karmakar

The article shows a simple model that computes the magnetoconduction and the integer quantum Hall effect (IQHE) in a two-dimensional electron system (2DES) where the spin is other degree of freedom in the system. The 2DES is confined in a…

Mesoscale and Nanoscale Physics · Physics 2012-01-13 M. A. Hidalgo , R. Cangas

We investigate the spin-polarized transport properties of a two-dimensional electron gas in a n-type diluted magnetic narrow gap semiconductor quantum well subjected to a perpendicular magnetic and electric field. Interesting beating…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 W. Yang , Kai Chang , X. G. Wu , H. Z. Zheng , F. M. Peeters

Theory of weak localization in two-dimensional high-mobility semiconductor systems is developed with allowance for the spin-orbit interaction. The obtained expressions for anomalous magnetoresistance are valid in the whole range of…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 M. M. Glazov , L. E. Golub

An analytical approach to calculation of the conductivity tensor, $\sigma$, of a two-dimensional (2D) electron system with Rashba spin-orbit interaction (SOI) in an orthogonal magnetic field is proposed. The electron momentum relaxation is…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 S. G. Novokshonov , A. G. Groshev

We propose a multi-terminal(Non-magnetic) mesoscopic electrical transport measurement for measuring Rashba spin orbit strength. The method proposed is different from the usual magneto transport measurements, which require magnetic fields…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 T. P. Pareek

Solutions of the Schr\"odinger equation are obtained for an electron in a two-dimensional circular semiconductor quantum ring in the presence of both external uniform constant magnetic field and the Rashba and Dresselhaus spin-orbit…

Mathematical Physics · Physics 2012-12-21 V. V. Kudryashov , A. V. Baran

Bilinear magnetoresistance has been studied theoretically in 2D systems with isotropic cubic form of Rashba spin-orbit interaction. We have derived the effective spin-orbital field due to current-induced spin polarization and discussed its…

Mesoscale and Nanoscale Physics · Physics 2024-03-26 A. Krzyzewska , A. Dyrdal

The spin-degeneracy of Bloch bands in a crystal can be lifted when spin-orbit (SO) coupling is present and inversion symmetry is absent. In two-dimensional electron systems (2DES) spin-degeneracy is lifted by Rashba interaction terms -…

Strongly Correlated Electrons · Physics 2013-07-16 Guru Khalsa , Byounghak Lee , A. H. MacDonald

We have numerically solved the Hamiltonian of an electron in a semiconductor double ring subjected to the magnetic flux and Rashba spin-orbit interaction. It is found that the Aharonov-Bohm energy spectrum reveals multi-zigzag periodic…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Wen-Hsuan Kuan , Chi-Shung Tang , Cheng-Hung Chang

The beating pattern of Shubnikov-de Haas oscillations is reproduced in both the crossed and tilted magnetic field configuration and in presence of zero-field valley splitting in Si-MOSFET system. The consequences of IQHE in extremely dilute…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. V. Cheremisin

Spintronics is aimed at active controlling and manipulating the spin degrees of freedom in semiconductor devices. A promising way to achieve this goal is to make use of the tunable Rashba effect that relies on the spin-orbit interaction…

We classify the magnetic ground states of a 2D lattice of localized magnetic moments which are coupled to a superconducting substrate with Rashba-spin-orbit coupling. We discover a rich magnetic phase diagram with surprisingly complex…