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We show that the dominant absorption peak due to inter-subband transition in a gated quantum wire, with two occupied subbands, will split into a main peak and two satellite peaks if both Rashba and Dresselhaus spin-orbit interactions are…

介观与纳米尺度物理 · 物理学 2011-02-01 S. Bandyopadhyay , S. Sarkar

We theoretically investigate the spin-dependent Seebeck effect in an Aharonov-Bohm mesoscopic ring in the presence of both Rashba and Dresselhaus spin-orbit interactions under magnetic flux perpendicular to the ring. We apply the Green's…

介观与纳米尺度物理 · 物理学 2016-03-23 Bin Liu , Yunyun Li , Jun Zhou , Tsuneyoshi Nakayama , Baowen Li

We theoretically studied the in-plane tunneling spectroscopy of the hybrid structure composed of a metal and a semiconductor with Rashba spin-orbit coupling. We found that the energy spacing between two distinct features in the conductance…

介观与纳米尺度物理 · 物理学 2008-05-28 B Srisongmuang , P Pairor , M Berciu

Electron transport properties of a non-interacting mesoscopic ring sandwiched between two metallic electrodes are investigated by the use of Green's function formalism. We introduce a parametric approach based on the tight-binding model to…

介观与纳米尺度物理 · 物理学 2009-11-06 Santanu K. Maiti

Vortex lattice states occurring in noncentrosymmetric superconductors with the spin-orbit coupling of Rashba type under a magnetic field parallel to the symmetry plane are examined by assuming the $s$-wave pairing case and in an approach…

超导电性 · 物理学 2015-10-14 Yuichiro Dan , Ryusuke Ikeda

Spin-based metal-oxide-semiconductor field-effect transistors (MOSFET) with a high-mobility III-V channel are studied using self-consistent quantum corrected ensemble Monte Carlo device simulations of charge and spin transport. The…

介观与纳米尺度物理 · 物理学 2022-06-15 B Thorpe , K Kalna , S Schirmer

A spin-qubit transformation protocol is proposed for an electron in a mesoscopic quantum ring with tunable Rashba interaction controlled by the external electric field. The dynamics of an electron driven around the ring by a series of…

介观与纳米尺度物理 · 物理学 2020-09-22 Kregar Ambrož , Ramšak Anton

We discuss problem of Rashba field in bulk GaN and in GaN/AlGaN two-dimensional electron gas, basing on results of X-band microwave resonance experiments. We point at large difference in spin-orbit coupling between bulk material and…

材料科学 · 物理学 2012-11-14 A. Wolos , Z. Wilamowski , C. Skierbiszewski , A. Drabinska , B. Lucznik , I. Grzegory , S. Porowski

Ferromagnetic heterostructures provide an ideal platform to explore the nature of spin-orbit torques arising from the interplay mediated by itinerant electrons between a Rashba-type spin-orbit coupling and a ferromagnetic exchange…

介观与纳米尺度物理 · 物理学 2014-02-10 Xuhui Wang , Christian Ortiz Pauyac , Aurelien Manchon

The CV measurements and tunneling spectroscopy are used to study the ballistic transport of the spin-polarized holes by varying the value of the Rashba spin-orbit interaction (SOI) in the p-type quantum well prepared on the surface of the…

介观与纳米尺度物理 · 物理学 2015-06-25 N. T. Bagraev , M. I. Bovt , O. N. Guimbitskaya , L. E. Klyachkin , A. M. Malyarenko , A. I. Ryskin , A. S. Shcheulin

We consider a two-dimensional system of harmonically trapped particles with pseudo-spin-$\frac{1}{2}$ degree of freedom. This degree of freedom is coupled to the particle's momentum via the so-called Rashba spin-orbit interaction. We…

A system composed of a conducting planar strip with Rashba spin-orbit coupling (RSOC), magnetically coupled to a layer of localized magnetic moments, at equilibrium, is studied within a microscopic Hamiltonian with numerical techniques at…

强关联电子 · 物理学 2017-02-08 Jose A. Riera

We demonstrate how the Rashba spin-orbit coupling in semiconductor heterostructures can produce and control a spin-polarized current without ferromagnetic leads. Key idea is to use spin-double refraction of an electronic beam with a nonzero…

介观与纳米尺度物理 · 物理学 2007-05-23 V. Marigliano Ramaglia , D. Bercioux , V. Cataudella , G. De Filippis , C. A. Perroni

We investigate theoretically the spin-dependent electron transport in a Rashba quantum wire with rough edges. The charge and spin conductances are calculated as function of the electron energy or the wire length by adopting the spinresolved…

介观与纳米尺度物理 · 物理学 2012-09-06 Xianbo Xiao , Huili Li , Guanghui Zhou , Nianhua Liu

We evaluate the transport coefficients of a two-dimensional electron gas (2DEG) in the presence of a perpendicular magnetic field and of the spin-orbit interaction (SOI) described only by the Rashba term. The SOI mixes the spin-up and…

介观与纳米尺度物理 · 物理学 2016-08-31 X. F. Wang , P. Vasilopoulos

Measurements of magnetic properties at the atomic scale require probes capable of combining high spatial resolution with spin sensitivity. Spin-polarized scanning tunneling microscopy (SP-STM) fulfills these conditions by using atomically…

超导电性 · 物理学 2023-07-20 Felix Küster , Souvik Das , Stuart S. P. Parkin , Paolo Sessi

It is of considerable technological importance to achieve an electrical control of magnetism of sufficient magnitude. To overcome the in-plane shape anisotropy, needed is the electrical control of a perpendicular magnetic anisotropy (PMA).…

介观与纳米尺度物理 · 物理学 2022-06-16 Wen Li , Stewart Barnes

We study the spin relaxation torque in nonmagnetic or ferromagnetic metals with nonuniform spin-orbit coupling within the Keldysh Green's function formalism. In non-magnet, the relaxation torque is shown to arise when the spin-orbit…

介观与纳米尺度物理 · 物理学 2015-06-03 Kazuhiro Tsutsui , Akihito Takeuchi , Gen Tatara , Shuichi Murakami

The lack of some spatial symmetries in planar devices with Rashba spin-orbit interaction opens the possibility of producing spin polarized electrical currents in absence of external magnetic field or magnetic impurities. We study how the…

介观与纳米尺度物理 · 物理学 2015-06-19 Leonor Chico , A. Latgé , Luis Brey

The strength of the non-adiabatic spin torque is currently under strong debate, as its value differs by orders of magnitude as well in theoretical predictions as in measurements. Here, a measurement scheme is presented that allows to…

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