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The direct electrical method was used to study the behavior of the spin Hall effect in a magnetic field perpendicular to the injection current in aluminum samples with resistivities that differed by two orders of magnitude at a temperature…

Mesoscale and Nanoscale Physics · Physics 2023-12-15 Yu. N. Chiang , M. O. Dzyuba

Spin accumulation and spin transfer torques induced by Spin Hall Effect in bi-layer structures comprising ferromagnetic and paramagnetic materials are theoretically investigated. The charge and spin diffusion equations taking into account…

Mesoscale and Nanoscale Physics · Physics 2011-08-15 A. Vedyayev , N. Strelkov , M. Chshiev , N. Ryzhanova , B. Dieny

The intrinsic contribution to the spin Hall effect in a 2DEG with non-magnetic impurities is studied in a quantum Boltzmann approach. It is shown that if the steady state response is perturbative in the spin-orbit coupling parameter…

Mesoscale and Nanoscale Physics · Physics 2009-10-01 Janik Kailasvuori

The characterization of the stationary states in the spin-Hall effect is discussed within the framework of the phenomenological two spin-channel model. It is shown that two different definitions of the stationary states can be applied in…

Mesoscale and Nanoscale Physics · Physics 2017-12-19 Jean-Eric Wegrowe

We inject spin-polarized electrons from an Fe/MgO tunnel barrier contact into n-type Ge(001) substrates with electron densities 2e16 < n < 8e17 cm-3, and electrically detect the resulting spin accumulation using three-terminal Hanle…

Materials Science · Physics 2012-02-20 A. T. Hanbicki , S. -. F. Cheng , R. Goswami , O. M. J. van `t Erve , B. T. Jonker

We consider a 2D ballistic and quasi-ballistic structures with spin-orbit-related splitting of the electron spectrum. The ballistic region is attached to the leads with a voltage applied between them. We calculate the edge spin density…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Alexander Khaetskii , Eugene Sukhorukov

In this paper, we use numerical relativity to study the spin induction effect within close hyperbolic encounters of initially spinning black holes. We review the initially non-spinning case and explore the cases of initially aligned,…

General Relativity and Quantum Cosmology · Physics 2024-12-23 Jorge L. Rodríguez-Monteverde , Santiago Jaraba , Juan García-Bellido

In contrast to the long-known fact that spin-flip hot spots, i.e., special \vc{k}-points on the Fermi surface showing a high spin-mixing parameter, do not occur in the bulk of monovalent (noble and alkali) metals, we found them on the…

We present gauge-invariant theory of the dynamic inverse spin Hall effect driven by the spin--orbit interaction in metallic systems. Charge conservation is imposed diagrammatically by including vertex corrections. We show the charge current…

Mesoscale and Nanoscale Physics · Physics 2010-01-06 Kazuhiro Hosono , Akihito Takeuchi , Gen Tatara

Silicon is promising for spin-based quantum computation because nuclear spins, a source of magnetic noise, may be eliminated through isotopic enrichment. Long spin decoherence times, $T_2$, have been measured in isotope-enriched silicon but…

Mesoscale and Nanoscale Physics · Physics 2010-10-29 Wayne M. Witzel , Malcolm S. Carroll , Andrea Morello , Lukasz Cywinski , S. Das Sarma

We theoretically investigate the mechanism to generate large intrinsic spin Hall effect in iridates or more broadly in 5d transition metal oxides with strong spin-orbit coupling. We demonstrate such a possibility by taking the example of…

Strongly Correlated Electrons · Physics 2018-05-25 Adarsh S. Patri , Kyusung Hwang , Hyun-Woo Lee , Yong Baek Kim

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…

Mesoscale and Nanoscale Physics · Physics 2020-02-11 Yu. N. Chiang , M. O. Dzyuba

We measure spin-orbit torques (SOTs) in a unique model system of all-epitaxial ferrite/Pt bilayers to gain insights into charge-spin interconversion in Pt. With negligible electronic conduction in the insulating ferrite, the crystalline Pt…

The non-equilibrium transportation of two-dimensional electrons through a narrow channel is investigated under the influence of the Rashba interaction. By introducing suitable lifetime in the Green's function, the average spin values can be…

Mesoscale and Nanoscale Physics · Physics 2010-11-16 Yi-Ying Chin , Jui-Yu Chiu , Ming-Che Chang , Chung-Yu Mou

The concept of anisotropy of spin relaxation in non-magnetic metals with respect to the spin direction of the injected electrons relative to the crystal orientation is introduced. The effect is related to an anisotropy of the Elliott-Yafet…

We study the spin relaxation of charge carriers in graphene in the presence of spin-polarized charged impurities by calculating the time evolution of initially polarized state. The spin relaxation time shows completely different energy…

Mesoscale and Nanoscale Physics · Physics 2017-01-11 Ville Vierimaa , Zheyong Fan , Ari Harju

Similar to the Landauer electric dipole created around an impurity by the electric current, a spin polarized cloud of electrons can be induced by the intrinsic spin-Hall effect near a spin independent elastic scatterer. It is shown that in…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. G. Mal'shukov , C. S. Chu

The interconversion between charge and spin degrees of freedom is of both fundamental and technological relevance in spintronics. While a non-equilibrium spin density and a charge current are related by the well known Rashba-Edelstein…

Mesoscale and Nanoscale Physics · Physics 2023-11-17 Marc Vila , Joel E. Moore

Recent reports of spin-orbit coupling enhancement in chemically modified graphene have opened doors to studies of the spin Hall effect with massless chiral fermions. Here, we theoretically investigate the interaction and impurity density…

Mesoscale and Nanoscale Physics · Physics 2016-11-15 Mirco Milletari , Aires Ferreira

We propose mechanisms for the spin Hall effect in metallic systems arising from the coupling between conduction electrons and local magnetic moments that are dynamically fluctuating. Both a side-jump-type mechanism and a…

Strongly Correlated Electrons · Physics 2019-11-11 Satoshi Okamoto , Takeshi Egami , Naoto Nagaosa
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