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We investigate the spin Hall effect of W-Hf thin films, which exhibit a phase transition from a segregated phase mixture to an amorphous alloy below 70% W. The spin Hall angle was determined with a planar harmonic Hall voltage technique.…

材料科学 · 物理学 2018-10-03 Markus Meinert , Katharina Fritz , Sebastian Wimmer , Hubert Ebert

Spintronic logic devices require efficient spin-charge interconversion: converting charge current to spin current and spin current to charge current. In spin-orbit materials that are regarded as the most promising candidate for spintronic…

材料科学 · 物理学 2024-01-30 Zixu Wang , Zhizhong Chen , Rui Xu , Hanyu Zhu , Ravishankar Sundararaman , Jian Shi

Ferroelectric Rashba semiconductors (FERSC) have recently emerged as a promising class of spintronics materials. The peculiar coupling between spin and polar degrees of freedom responsible for several exceptional properties, including…

材料科学 · 物理学 2019-07-10 H. Wang , P. Gopal , S. Picozzi , S. Curtarolo , M. Buongiorno Nardelli , J. Slawinska

We study the effect of anisotropy of the Rashba coupling on the extrinsic spin Hall effect due to spin-orbit active adatoms on graphene. In addition to the intrinsic spin-orbit coupling, a generalized anisotropic Rashba coupling arising…

介观与纳米尺度物理 · 物理学 2016-03-01 H-Y. Yang , Chunli Huang , Hector Ochoa , Miguel A. Cazalilla

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

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

The (001) surface of SrTiO3 were transformed from insulating to conducting after Ar+ irradiation, producing a quasi two-dimensional electron gas (2DEG). This conducting surface layer can introduce Rashba spin orbital coupling due to the…

材料科学 · 物理学 2017-01-02 Wenxu Zhang , Qiuru Wang , Bin Peng , Huizhong Zeng , Wee Tee Soh , Chong Kim Ong , Wanli Zhang

We investigate spin-to-charge conversion via the Edelstein effect in a 2D Rashba electron gas using the semiclassical Boltzmann approach. We analyze the magnetization arising from the direct Edelstein effect, taking into account an…

介观与纳米尺度物理 · 物理学 2025-03-27 Irene Gaiardoni , Mattia Trama , Alfonso Maiellaro , Claudio Guarcello , Francesco Romeo , Roberta Citro

Spin-orbit splitting in graphene on Ni, Au, or Ag (111) substrates was examined on the basis of density-functional theory. Graphene grown on the three metals was found to have Rashba splitting of a few or several tens of meV. The strong…

介观与纳米尺度物理 · 物理学 2010-08-05 Z. Y. Li , S. Qiao , Z. Q. Yang , R. Q. Wu

We present measurements of the Spin Hall Effect (SHE) in AuW and AuTa alloys for a large range of W or Ta concentrations by combining experiments on lateral spin valves and Ferromagnetic-Resonance/spin pumping technique. The main result is…

Ferromagnetic metals, with the potential to generate spin current with unconventional spin polarization via the spin Hall effect, offer promising opportunities for field-free switching of perpendicular magnetization and for the spin-orbit…

材料科学 · 物理学 2025-01-03 Fanxing Zheng , Jianting Dong , Yizhuo Song , Meng Zhu , Xinlu Li , Jia Zhang

Terahertz (THz) spin-to-charge conversion has become an increasingly important process for THz pulse generation and as a tool to probe ultrafast spin interactions at magnetic interfaces. However, its relation to traditional, steady state,…

We demonstrate theoretically that a coherent manipulation of electron spins in low-dimensional semiconductor structures with spin-orbit coupling by infrared radiation is possible. The proposed approach is based on using a dipole force…

介观与纳米尺度物理 · 物理学 2010-09-28 E. Ya. Sherman , J. G. Muga , V. K. Dugaev , A. Ruschhaupt

Hyperbolic metamaterials, horizontally stacked metal and dielectric multilayer, have recently been studied as a platform to observe optical spin Hall effect. However, the large optical spin Hall effect in the horizontal hyperbolic…

光学 · 物理学 2019-06-26 Minkyung Kim , Dasol Lee , Tae Hak Kim , Younghwan Yang , Hui Joon Park , Junsuk Rho

Spin-orbit torques due to interfacial Rashba and spin Hall effects have been widely considered as a potentially more efficient approach than the conventional spin-transfer torque to control the magnetization of ferromagnets. We report a…

We theoretically study the mechanical induction of the spin density via the Rashba spin--orbit interaction (SOI). The spin density in the linear response to lattice distortion dynamics is calculated based on the microscopic theory. We…

介观与纳米尺度物理 · 物理学 2021-09-15 Takumi Funato , Mamoru Matsuo

In ferromagnetic metals, the interconversion of spin and charge currents via the spin Hall effect and its inverse can depend on the angle between the ferromagnets magnetization and the spin current polarization direction. Here, such a…

材料科学 · 物理学 2019-03-27 Joel Cramer , Andrew Ross , Samridh Jaiswal , Lorenzo Baldrati , Romain Lebrun , Mathias Kläui

Theory of spin-charge conversion effects in spintronics are presented in terms of correlation functions of physical observables, spin and electric current. Direct and inverse spin Hall effects and spin pumping effect are studied considering…

介观与纳米尺度物理 · 物理学 2018-11-28 Gen Tatara

We report a magnetotransport study of spin relaxation in 1.4-21.2 nm epitaxial SrIrO$_3$ thin films coherently strained on SrTiO$_3$ substrates. Fully charge compensated semimetallic transport has been observed in SrIrO$_3$ films thicker…

强关联电子 · 物理学 2020-06-16 L. Zhang , X. Jiang , X. Xu , X. Hong

Antiferromagnetic $\mathrm{L1_2}$-$\mathrm{Mn_3Ir}$ combines outstanding spin-transport properties with magnons in the terahertz (THz) frequency range. However, the THz radiation emitted by ultrafast spin-to-charge conversion via the…