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Spin-orbit coupling effects occurring in non-centrosymmetric materials are known to be responsible for non-trivial spin configurations and a number of emergent physical phenomena. Ferroelectric materials may be especially interesting in…

Materials Science · Physics 2017-07-05 L. L. Tao , Tula R. Paudel , Alexey A. Kovalev , Evgeny Y. Tsymbal

We investigate theoretically the electronic structure and transport for a two-level quantum wire with Rashba spin-orbit coupling (SOC) under the irradiation of an external laser field at low temperatures. The photon-induced transitions…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Guanghui Zhou , Wenhu Liao

We theoretically study the influence of the $k$-cubic Rashba spin-orbit coupling (SOC) on the correlation effects of magnetic impurities by combining the variational method and the Hirsch-Fye quantum Monte Carlo (HFQMC) simulations.…

Strongly Correlated Electrons · Physics 2023-05-10 Xiong-Tao Peng , Fang Lin , Liang Chen , Lin Li , Dong-Hui Xu , Jin-Hua Sun

Spin-orbit torque (SOT) has been extensively studied as a key mechanism in spintronics applications. However, conventional SOT materials limit the spin polarization direction to the in-plane orientation, which is suboptimal for efficient…

Mesoscale and Nanoscale Physics · Physics 2025-03-20 Yifei Yang , Jian-Ping Wang

We propose a new type of the spin Seebeck effect (SSE) emerging from the Rashba spin-orbit coupling in asymmetric four-terminal electron systems. This system generates spin currents or spin voltages along the longitudinal direction parallel…

Mesoscale and Nanoscale Physics · Physics 2016-02-11 Jun Zhou , Biao Wang , Mengjie Li , Tsuneyoshi Nakayama , Baowen Li

We study the spin polarization induced by a current flow in clean two dimensional electron gases with Rashba spin-orbit coupling. This geometric effect originates from special properties of the electron's scattering at the edges of the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. Reynoso , Gonzalo Usaj , C. A. Balseiro

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such a control mechanism to the spin-dependent transport in a ballistic quasi one dimensional ring patterned in two…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 S. Bellucci , P. Onorato

It is shown that a flux of unpolarized electrons across a symmetric double barrier quantum well induces a spin polarization inside the well. Besides, the transmitted current acquires a spin polarized component and the spin-Hall current…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. G. Mal'shukov , C. S. Chu

Quantum interference effects in rings provide suitable means for controlling spin at mesoscopic scales. Here we apply such control mechanisms to coherent spin-dependent transport in one- and two-dimensional rings subject to Rashba…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Diego Frustaglia , Klaus Richter

The robust effect of curvature on spin polarization is reported in a three-terminal bridge system where the bridging material is subjected to Rashba spin-orbit interaction. The results are examined considering two different geometric…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Santanu K. Maiti

Dynamic response of two-dimensional electron systems with spin-orbit interaction is studied theoretically on the basis of quantum kinetic equation, taking into account elastic scattering of electrons. The spin polarization and spin current…

Mesoscale and Nanoscale Physics · Physics 2007-06-19 O. E. Raichev

Three-dimensional topological insulators protected by both the time reversal (TR) and mirror symmetries were recently predicted and observed. Two-dimensional materials featuring this property and their potential for device applications have…

Mesoscale and Nanoscale Physics · Physics 2019-01-30 Carlos Mera Acosta , Adalberto Fazzio

The Edelstein effect is the origin of the spin-orbit torque: a current-induced torque that is used for the electrical control of ferromagnetic and antiferromagnetic materials. This effect originates from the relativistic spin-orbit…

Rashba spin-orbit coupling emerges in materials lacking of structural inversion symmetry, such as heterostructures, quantum wells, surface alloys and polar materials, just to mention few examples. It yields a coupling between the spin and…

Mesoscale and Nanoscale Physics · Physics 2017-08-31 Valentina Brosco , Claudio Grimaldi , Emmanuele Cappelluti , Lara Benfatto

The Rashba effect, which plays a crucial role in fundamental materials physics and potential spintronics applications, has been engineered in diverse systems, including semiconductor quantum wells, oxide heterostructures, metallic surfaces,…

We study ballistic transport through semiconductor quantum point contact systems under different confinement geometries and applied fields. In particular, we investigate how the {\em lateral} spin-orbit coupling, introduced by asymmetric…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Anh T. Ngo , P. Debray , Sergio Ulloa

Hidden Rashba and Dresselhaus spin-splittings in centrosymmetric crystals with subunits (sectors) having non-centrosymmetric symmetries (the R-2 and D-2 effects) have been predicted and observed experimentally, but the microscopic mechanism…

Materials Science · Physics 2019-03-06 Linding Yuan , Qihang Liu , Xiuwen Zhang , Jun-Wei Luo , Shu-Shen Li , Alex Zunger

We theoretically study the inverse Faraday effect, i.e., the optical induction of spin polarization with circularly polarized light, by particularly focusing on effects of band dispersions and Fermi surfaces in crystal systems with the…

Strongly Correlated Electrons · Physics 2020-08-24 Yasuhiro Tanaka , Takashi Inoue , Masahito Mochizuki

We study the spin current induced spin-Hall effect that a longitudinal spin dependent chemical potential $qV_{s=x,y,z}$ induces a transverse spin conductances $G^{ss'}$. A four terminal system with Rashba and Dresselhaus spin-orbit…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Yanxia Xing , Qing-feng Sun , Jian Wang

We study a one-dimensional wire with strong Rashba and Dresselhaus spin-orbit coupling (SOC), which supports Majorana fermions when subject to a Zeeman magnetic field and in proximity of a superconductor. Using both analytical and numerical…

Mesoscale and Nanoscale Physics · Physics 2013-05-30 Doru Sticlet , Cristina Bena , Pascal Simon