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相关论文: Dissipative contributions to spin polarization

200 篇论文

Spin Hall effects are a collection of phenomena, resulting from spin-orbit coupling, in which an electrical current flowing through a sample can lead to spin transport in a perpendicular direction and spin accumulation at lateral…

介观与纳米尺度物理 · 物理学 2007-09-18 Hans-Andreas Engel , Emmanuel I. Rashba , Bertrand I. Halperin

We investigate the spin-Hall effect in a two-dimensional heavy-hole system with Rashba spin-orbit coupling using a nonequilibrium Green's function approach. Both the short- and long-range disorder scatterings are considered in the…

材料科学 · 物理学 2009-11-11 S. Y. Liu , X. L. Lei

The phenomenon of mesoscopic Spin-Hall effect reveals in a nonequilibrium spin accumulation (driven by electric current) at the edges of a ballistic conductor or, more generally, in the regions with varying electron density. In this paper…

介观与纳米尺度物理 · 物理学 2009-12-24 P. G. Silvestrov , E. G. Mishchenko

In metallic systems with spin-orbit coupling a longitudinal charge current may generate a transverse pure spin current; vice-versa an injected pure spin current may result in a transverse charge current. Such direct and inverse spin Hall…

介观与纳米尺度物理 · 物理学 2022-12-23 Cosimo Gorini

Using a perturbative model for diffractive interactions, we derive an expression for the polarized diffractive structure function $g_1^D$ in the high energy limit. This structure function is given by the interference of diffractive…

高能物理 - 唯象学 · 物理学 2011-09-13 J. Bartels , T. Gehrmann , M. G. Ryskin

We investigate the formation and transport properties of chiral Andreev edge states in a two-dimensional quantum Hall system proximitized by a superconductor. By numerically modeling the system using the Bogoliubov-de Gennes equations, we…

介观与纳米尺度物理 · 物理学 2026-05-19 S. Maji , M. P. Nowak

We present a general unifying theory for spin polarization decay due to the interplay of spin precession and momentum scattering that is applicable to both spin-1/2 electrons and spin-3/2 holes. Our theory allows us to identify and…

介观与纳米尺度物理 · 物理学 2009-11-11 Dimitrie Culcer , Roland Winkler

We launch a first investigation into how a light scalar field coupled both conformally and disformally to matter influences the evolution of spinning point-like bodies. Working directly at the level of the equations of motion, we derive…

广义相对论与量子宇宙学 · 物理学 2021-03-09 Philippe Brax , Anne-Christine Davis , Scott Melville , Leong Khim Wong

The method proposed by us in [1], which eliminates obstacles in the application of electrical methods for studying the spin-Hall effect (SHE) by creating a spin unbalance, which generates a charge unbalance, using the form effect without…

介观与纳米尺度物理 · 物理学 2020-02-11 Yu. N. Chiang , M. O. Dzyuba

Spin-dependent electric dipole operators are investigated group-theoretically for the emergence of an electric dipole induced by a single spin or by two spins, where the spin dependences are completely classified up to the quadratic order.…

强关联电子 · 物理学 2017-02-09 Masashige Matsumoto , Kosuke Chimata , Mikito Koga

Basic questions on the nature of spin polarization in two terminal systems and the way in which decoherence breaks Time-Reversal Symmetry (TRS) are analyzed. We exactly solve several one-dimensional models of tunneling electrons and show…

介观与纳米尺度物理 · 物理学 2023-04-04 S. Varela , M. Peralta , V. Mujica , B. Berche , E. Medina

A new kind of charge-Hall effect is shown. Unlike in the usual Hall effect, the driving force in the longitudinal direction is a spin force, which may originate from the gradient of a Zeeman field or a spin-dependent chemical potential. The…

介观与纳米尺度物理 · 物理学 2007-05-23 Ping Zhang , Qian Niu

The temperature dependence of electron spin polarization for a narrow quantum Hall system shows behavior analogous to that of a two-dimensional system at major filling factors. At the lowest half-filled quantum Hall state for which no…

介观与纳米尺度物理 · 物理学 2009-10-30 Tapash Chakraborty , K. Niemelä , P. Pietiläinen

We systematically analyze the effects of the derivatives of the hydrodynamic fields on axial Wigner function that describes the spin polarization vector in phase space. We have included all possible first-order derivative contributions that…

高能物理 - 唯象学 · 物理学 2021-08-18 Shuai Y. F. Liu , Yi Yin

Chiral structures that produce asymmetric spin-phonon coupling can theoretically generate spin-phonon polarons -- quasiparticles exhibiting non-degenerate spin states with phonon displacements. These quasiparticles are speculated to be the…

I summarize the theoretical predictions for the spin-dependent nucleon polarizabilities based on chiral effective field theory approaches.

高能物理 - 唯象学 · 物理学 2017-08-23 Ulf-G. Meißner

It is shown that spin Hall effect creates uniform spin polarization of electrons in semiconductor with a linear in the momentum spin splitting of conduction band. In turn, the profile of the non-uniform spin polarization accumulated at the…

介观与纳米尺度物理 · 物理学 2007-05-23 V. L. Korenev

We generalise the reconstruction theorem of Stern, Sazdjian, and Fuchs based on the dispersion relations to the case of the (2 -> 2) scattering of all the pseudoscalar octet mesons (pi, K, eta). We formulate it in a general way and include…

高能物理 - 唯象学 · 物理学 2008-12-30 M. Zdrahal , J. Novotny

For over two decades, the role of structural chirality in spin polarization has been widely investigated, with implications for the origins of life, catalysis, and quantum phenomena. Yet, it remains unclear whether all chirality-induced…

介观与纳米尺度物理 · 物理学 2025-05-12 Pius M. Theiler , Sander Driessen , Matthew C. Beard

Nonlinear spin polarization occurring in the second order of driving electric current is the dominant source of nonequilibrium magnetization in centrosymmetric or weakly noncentrosymmetric nonmagnetic materials, and induces nonlinear…

介观与纳米尺度物理 · 物理学 2024-03-08 Ruda Guo , Yue-Xin Huang , Xiaoxin Yang , Yi Liu , Cong Xiao , Zhe Yuan