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相关论文: Enhanced Gilbert Damping via Cubic Spin-Orbit Coup…

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We theoretically consider spin pumping in a junction between a ferromagnetic insulator (FI) and a two-dimensional electron gas (2DEG) in which the Rashba and Dresselhaus spin-orbit interactions coexist. Using second-order perturbation…

介观与纳米尺度物理 · 物理学 2021-08-10 M. Yama , M. Tatsuno , T. Kato , M. Matsuo

We theoretically consider the effect of vertex correction on spin pumping from a ferromagnetic insulator (FI) into a two-dimensional electron gas (2DEG) in which the Rashba and Dresselhaus spin-orbit interactions coexist. The Gilbert…

介观与纳米尺度物理 · 物理学 2023-05-15 M. Yama , M. Matsuo , T. Kato

We investigate the effect of $k$-cubic spin-orbit interaction on electrical and thermoelectric transport properties of two-dimensional fermionic systems. We obtain exact analytical expressions of the inverse relaxation time (IRT) and the…

介观与纳米尺度物理 · 物理学 2017-10-26 Alestin Mawrie , Sonu Verma , Tarun Kanti Ghosh

The Rashba-split two-dimensional electron gas (2DEG) at the surface and interface of insulating oxides like KTaO$_{3}$ (KTO) shows great promise for all-oxide spintronics. However, efficient spin current injection into the adjacent 2DEG…

介观与纳米尺度物理 · 物理学 2026-03-06 Yasar K. Arafath , Vaishali Yadav , Nidhi Kandwal , P. N. Santhosh , Pranaba Kishore Muduli , Prasanta Kumar Muduli

We present a microscopic calculation of the Gilbert damping constant for the magnetization of a two-dimensional spin-polarized electron liquid in the presence of intrinsic spin-orbit interaction. First we show that the Gilbert constant can…

介观与纳米尺度物理 · 物理学 2009-11-11 E. M. Hankiewicz , G. Vignale , Y. Tserkovnyak

We have studied in detail the electronic structure of IrO$_2$ including spin-orbit coupling (SOC) and electron-electron interaction, both within the GGA+U and GGA+DMFT approximations. Our calculations reveal that the Ir t$_{2g}$ states at…

强关联电子 · 物理学 2014-04-25 S. K. Panda , S. Bhowal , A. Delin , O. Eriksson , I. Dasgupta

We investigate several spin-related phenomena in a confined two-dimensional electron gas (2DEG) using the Hartree-Fock approximation for the mutual Coulomb interaction of the electrons. The exchange term of the interaction causes a large…

凝聚态物理 · 物理学 2007-05-23 Vidar Gudmundsson , Juan Jose Palacios

We study the spin dynamics of a ferromagnetic insulator on which graphene is placed. We show that the Gilbert damping is enhanced by the proximity exchange coupling at the interface. The modulation of the Gilbert damping constant is…

介观与纳米尺度物理 · 物理学 2020-04-16 Yuya Ominato , Mamoru Matsuo

Spin pumping effect is a sensitive and well-established experimental method in two-dimensional (2D) magnetic materials. We propose that spin pumping effect can be a valuable probe for non-Fermi liquid (NFL) behaviors at the 2D interface of…

强关联电子 · 物理学 2025-03-19 Xiao-Tian Zhang , Yi-Hui Xing , Xu-Ping Yao , Yuya Ominato , Long Zhang , Mamoru Matsuo

We show that the spin pumping from ferromagnetic insulator into the adjacent metallic spin sink can be strongly stimulated by the superconducting correlations. The key physical mechanism responsible for this effect is the presence of…

超导电性 · 物理学 2020-11-18 M. A. Silaev

We study spin pumping into an anisotropic Dirac electron system induced by microwave irradiation to an adjacent ferromagnetic insulator theoretically. We formulate the Gilbert damping enhancement due to the spin current flowing into the…

介观与纳米尺度物理 · 物理学 2022-10-21 Takumi Funato , Takeo Kato , Mamoru Matsuo

We investigated effects of a Rashba-type spin-orbit coupling (SOC) on the condensed density and superfluid density tensor of a two-component Fermi gas in the BCS-BEC crossover at zero temperature. In anisotropic three dimensions (3D), we…

量子气体 · 物理学 2015-05-30 Kezhao Zhou , Zhidong Zhang

In this paper, we investigate theoretically the spin-orbit torque as well as the Gilbert damping for a two band model of a 2D helical surface state with a Ferromagnetic (FM) exchange coupling. We decompose the density matrix into the Fermi…

介观与纳米尺度物理 · 物理学 2016-08-16 Farzad Mahfouzi , Nicholas Kioussis

It is well known that the Dresselhaus spin-orbit coupling (SOC) in semiconductor two dimensional electron gases (2DEGs) possesses both linear and cubic in momentum contributions. Nevertheless, the latter is usually neglected in most…

介观与纳米尺度物理 · 物理学 2023-03-06 E. Santana-Suárez , F. Mireles

We present a consistent microscopic study of spin pumping effects for both metallic and insulating ferromagnets. As for metallic case, we present a simple quantum mechanical picture of the effect as due to the electron spin flip as a result…

介观与纳米尺度物理 · 物理学 2017-08-22 Gen Tatara , Shigemi Mizukami

Spin-pumping across ferromagnet/superconductor (F/S) interfaces has attracted much attention lately. Yet the focus has been mainly on s-wave superconductors-based systems whereas (high-temperature) d-wave superconductors such as YBa2Cu3O7-d…

Electron collisions for a two dimensional Fermi liquid (FL) are shown to give a quasiparticle damping with interesting frequency and temperature variations in the BCS superconducting state. The spin susceptibility which determines the…

凝聚态物理 · 物理学 2009-10-28 Shubha Tewari , John Ruvalds

Strong spin-orbit coupling can have a profound effect on the electronic structure in a metal or semiconductor, particularly for low electron concentrations. We show how, for small values of the Fermi energy compared to the spin-orbit…

介观与纳米尺度物理 · 物理学 2009-11-11 E. Cappelluti , C. Grimaldi , F. Marsiglio

We calculate the superconducting $T_c$ for a system which experiences Rashba spin-orbit interactions. Contrary to the usual case where the electron-electron interaction is assumed to be wave vector-independent, where superconductivity is…

超导电性 · 物理学 2018-09-05 Joel Hutchinson , J. E. Hirsch , Frank Marsiglio

Materials with strong spin orbit coupling (SOC) are essential for realizing spin orbit torque (SOT) based magnetic memory devices. Transition metal dichalcogenides (TMDs) are promising candidates for such appli cations because of their…

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