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相关论文: Tunable Giant Rashba-type Spin Splitting in PtSe$_…

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The structure inversion asymmetry at surfaces and interfaces give rise to the Rashba spin-orbit interaction (SOI), that breaks the spin degeneracy of surface or interface states. Hence, when an electric current runs through a surface or…

We present a theory pertaining to the asymptotic behavior of Rashba energy splitting in a quantum-well state (QWS). First, unlike previous studies, we derive $\textbf{k}$-linear Rashba term from a first-principles Hamiltonian in a…

介观与纳米尺度物理 · 物理学 2024-07-09 Mitsuaki Kawamura , Taisuke Ozaki

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…

介观与纳米尺度物理 · 物理学 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

Rashba effect in 2D systems is extensively studied nowadays due to spintronics applications. The Letter studies the fundamentals of spin-orbit interaction in 2D systems. Experimental evidence is claimed for the rotation of the spin…

材料科学 · 物理学 2023-07-04 Abraham F. Campos , Kang Wang , Antonio Tejeda

We investigate the electronic structure of a two-dimensional electron gas created at the surface of the multi-valley semimetal 1T-PtSe$_2$. Using angle-resolved photoemission and first-principles-based surface space charge calculations, we…

材料科学 · 物理学 2019-02-26 O. J. Clark , F. Mazzola , J. Feng , V. Sunko , I. Marković , L. Bawden , T. K. Kim , P. D. C. King , M. S. Bahramy

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

In this letter, we investigated the Rashba effect of the CsPbBr$_3$ bilayers under the external electric field (EEF), with the first-principles calculations. For the PbBr$_2$ terminated bilayer, we found that only electrons experience the…

材料科学 · 物理学 2018-07-04 Xue-Jiao Chen , Lei Liu , De-Zhen Shen

The anisotropic Rashba effect allows for the manipulation of electron spins in a more precise and tunable manner since the magnitude of the Rashba splitting and orientation of the spin textures can be simply controlled by tuning the…

材料科学 · 物理学 2023-10-30 Arif Lukmantoro , Moh. Adhib Ulil Absor

One-body mechanisms of spin splitting of the energy spectrum of 2D electrons in a one-side doped (001) GaAs/Al$_x$Ga$_{1-x}$As quantum well have been studied theoretically and experimentally. The interfacial spin splitting has been shown to…

介观与纳米尺度物理 · 物理学 2014-10-10 Zh. A. Devizorova , A. V. Shchepetilnikov , Yu. A. Nefyodov , V. A. Volkov , I. V. Kukushkin

We study the conduction band spin splitting that arises in transition metal dichalcogenide (TMD) semiconductor monolayers such as MoS$_2$, MoSe$_2$, WS$_2$ and WSe$_2$ due to the combination of spin-orbit coupling and lack of inversion…

材料科学 · 物理学 2014-01-01 K. Kośmider , J. W. González , J. Fernández-Rossier

The experimental evidence of the ultra-high electron mobility and strong spin-orbit coupling in the two-dimensional (2D) layered bismuth-based oxyselenide, Bi$_{2}$O$_{2}$Se, makes it a potential material for spintronic devices. However,…

Composite quantum compounds offer a fertile ground for uncovering the complex interrelations between seemingly distinct phenomena in condensed matter physics for advanced nonvolatile and spintronics applications. Beyond topological…

材料科学 · 物理学 2025-11-04 Saurav Patel , Paras Patel , Shaohui Qiu , Prafulla K. Jha

Strong spin-orbit coupling in noncentrosymmetric materials and interfaces results in remarkable physical phenomena, such as nontrivial spin textures, which may exhibit Rashba, Dresselhaus, and other intricated configurations. This provides…

介观与纳米尺度物理 · 物理学 2021-11-15 Thorsten Aull , Igor V. Maznichenko , Sergey Ostanin , Ersoy Şaşıoğlu , Ingrid Mertig

Two-dimensional transition metal dichalcogenide (TMD) interfaces offer a versatile platform for studying emergent quantum phenomena and enabling novel device functionalities. When distinct TMD monolayers are stacked vertically or laterally…

The spin-resolved dispersion dependencies for the topological insulator Mn$_{1-x}$Ge$_x$Bi$_2$Te$_4$ in the $\bar{\rm K}\bar{\Gamma}\bar{\rm K}'$ path of the Brillouin zone were studied by spin- and angle-resolved photoemission spectroscopy…

We study how the Rashba spin-orbit interaction influences unconventional superconductivity in a two dimensional electron gas partially spin-polarized by a magnetic field. Somewhat surprisingly, we find that for all field orientations, only…

超导电性 · 物理学 2016-07-01 Ethan Lake , Caleb Webb , D. A. Pesin , O. A. Starykh

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 study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands…

介观与纳米尺度物理 · 物理学 2009-11-13 M. V. Fistul , K. B. Efetov

The paramount acumen for controlling spin transport properties in nonmagnetic materials is the usage of spin-orbit coupling (SOC). We propose a model to calculate the spin hall angle (SHA) for the elemental transition metal dichalcogenide…

介观与纳米尺度物理 · 物理学 2025-07-03 Swastik Sahoo , Satadeep Bhattacharjee , Bhaskaran Muralidharan

We present a calculation of the wavevector-dependent subband level splitting from spin-orbit coupling in Si/SiGe quantum wells. We first use the effective-mass approach, where the splittings are parameterized by separating contributions…

介观与纳米尺度物理 · 物理学 2009-08-18 M. Prada , G. Klimeck , R. Joynt