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Electronic and spintronic devices rely on the fact that free charge carriers in solids carry electric charge and spin, respectively. There are, however, other properties of charge carriers that might be exploited in new families of devices.…

介观与纳米尺度物理 · 物理学 2015-06-05 Kin Fai Mak , Keliang He , Jie Shan , Tony F. Heinz

Assuming a Fermi liquid behavior for $s$-conduction electrons, we rewrite the extended Landau-Lifshitz-Gilbert (LLG) equation renormalized by interactions through the Landau parameters $F^{a}_{l}$ ($l=0,1,2 \cdots$) in an explicit form to…

强关联电子 · 物理学 2022-10-06 H. B. Brentan , P. F. Farinas

We explore a two-qubit system defined on valley isospins of two electrons confined in a gate-defined double quantum dot created within a MoS$_2$ monolayer flake. We show how to initialize, control, interact and read out such valley qubits…

介观与纳米尺度物理 · 物理学 2021-07-19 J. Pawłowski , M. Bieniek , T. Woźniak

Inspired by the successful synthesis of two-dimensional (2D) V-based Janus dichloride monolayers with intrinsic ferromagnetism and high Curie temperature (T$_{c}$), the electronic structure, spin-valley splitting and magnetic anisotropy of…

材料科学 · 物理学 2022-10-04 Cunquan Li , Yukai An

A monolayer of $MoS_{2}$ has a non-centrosymmetric crystal structure, with spin polarized bands. It is a two valley semiconductor with direct gap falling in the visible range of the electromagnetic spectrum. Its optical properties are of…

介观与纳米尺度物理 · 物理学 2023-06-09 Zhou Li , J. P. Carbotte

We show that inversion symmetry breaking together with spin-orbit coupling leads to coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides, making possible controls of spin and valley in these 2D materials.…

介观与纳米尺度物理 · 物理学 2012-05-09 Di Xiao , Gui-Bin Liu , Wanxiang Feng , Xiaodong Xu , Wang Yao

Abstract The valley degree of freedom in two-dimensional materials provides an opportunity to extend the functionalities of valleytronics devices. Very short valley lifetimes demand the ultrafast control of valley pseudospin. Here, we…

In the presence of an external vertical electric field and strain, it is evident that 1T${^\prime}$-MoS$_2$ exhibits tilted Dirac bands which are valley-spin-polarized. Additionally, this material experiences a topological phase change…

介观与纳米尺度物理 · 物理学 2022-08-31 Antonios Balassis , Godfrey Gumbs , Oleksiy Roslyak

The control of electron spin, which is crucial to the stability of matter, offers new possibilities for manipulating the properties of molecules and materials with potential applications in spintronics and chemical reactions. Recent…

介观与纳米尺度物理 · 物理学 2023-08-16 Nguyen Thanh Phuc

We theoretically investigate spin-valley-locked tunneling transport in a transition-metal dichalcogenide/ferromagnetic-insulator heterostructure under a perpendicular magnetic field, driven by the spin Seebeck effect. We demonstrate that…

介观与纳米尺度物理 · 物理学 2026-02-09 Xin Hu , Yuya Ominato , Mamoru Matsuo

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…

介观与纳米尺度物理 · 物理学 2009-11-11 Guanghui Zhou , Wenhu Liao

The magnetization dynamics equation predicts that a domain wall that changes structure should undergo a displacement by itself - automotion - due to the relaxation of the linear momentum that is associated with the wall structure. We…

介观与纳米尺度物理 · 物理学 2015-05-19 Jean-Yves Chauleau , Raphaël Weil , André Thiaville , Jacques Miltat

We investigate numerically the spin properties of electrons in flakes made of materials described by the Dirac equation, at the presence of intrinsic spin-orbit-coupling(SOC). We show that electrons flowing along the borders of flakes via…

介观与纳米尺度物理 · 物理学 2016-02-17 Ioannis Kleftogiannis , Ilias Amanatidis

Tunnel transport of interacting spin-polarized electrons through a single-level vibrating quantum dot in external magnetic field is studied. By using density matrix method, the current-voltage characteristics and the dependence of…

介观与纳米尺度物理 · 物理学 2021-03-23 A. D. Shkop , O. M. Bahrova , S. I. Kulinich , I. V. Krive

Using Density functional theory and non-equilibrium Green's function formalism, spin dependent electron transport in Fe/Mo$_x$Cr$_{1-x}$S$_2$/Fe magnetic tunnel junction is studied. Spin transport for different thicknesses (1, 3, 5, and 7…

材料科学 · 物理学 2026-01-06 Aloka Ranjan Sahoo , Sharat Chandra

Carbon-based molecular semiconductors are explored for application in spintronics because their small spin-orbit coupling promises long spin life times. We calculate the electronic transport from first principles through spin valves…

介观与纳米尺度物理 · 物理学 2015-06-23 Deniz Çakır , Diana M. Otálvaro , Geert Brocks

Sliding ferroelectrics built from stacked nonpolar monolayers enable out-of-plane polarization and unconventional switching via interlayer sliding, yet the microscopic sliding dynamics remain unclear. Using machine-learning molecular…

材料科学 · 物理学 2026-04-23 Jia-Wen Li , Sheng Meng , Xinghua Shi , Jin Zhang , Wei-Hai Fang

We establish a unified, symmetry-driven framework that combines the alternating spin splitting of altermagnets with valley topology to realize and electrically interconvert helical and chiral topological phases within a single material…

介观与纳米尺度物理 · 物理学 2026-03-09 Xianzhang Chen , Jiayong Zhang , Bowen Hao , Jiahui Qian , Ziye Zhu , Igor Zutic , Zhenyu Zhang , Tong Zhou

An existence of predominant symmetrical spin configuration (spin polarised phase) and "diluted" density of states (pseudo-gap) in a layer under the Fermi level in a quantum wire is predicted. The condition of cross-over from non-polarised…

强关联电子 · 物理学 2009-10-31 V. V'yurkov , A. Vetrov

A quantum theory of the spin-dependent scattering of semiconductor electrons by a Schottky barrier at an interface with a ferromagnet is presented. The reflection of unpolarized non-equilibrium carriers produces spontaneous…

介观与纳米尺度物理 · 物理学 2007-05-23 J. P. McGuire , C. Ciuti , L. J. Sham