Hanle magnetoresistance: The role of edge spin accumulation and interfacial spin current

2016 ◽  
Vol 94 (17) ◽  
Author(s):  
H. Wu ◽  
X. Zhang ◽  
C. H. Wan ◽  
B. S. Tao ◽  
L. Huang ◽  
...  
Keyword(s):  
Spin Current ◽  
Spin Accumulation ◽  
Edge Spin

Terahertz emission from CoFeB/Cr/Pt trilayers: The role of Cr as both a spin current transporter and generator

2021 ◽  
Vol 118 (23) ◽  
pp. 232401
Author(s):  
Qi Zhang ◽  
Zhuangzhuang Chen ◽  
Huafeng Shi ◽  
Xin Chen ◽  
Abhishek Talapatra ◽  
...  
Keyword(s):  
Spin Current ◽  
Terahertz Emission

scholarly journals Pure spin photocurrent in non-centrosymmetric crystals: bulk spin photovoltaic effect

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Haowei Xu ◽  
Hua Wang ◽  
Jian Zhou ◽  
Ju Li
Keyword(s):  
Mirror Symmetry ◽  
Photovoltaic Effect ◽  
Transition Metal Dichalcogenides ◽  
Spin Current ◽  
Pure Spin ◽  
Light Illumination ◽  
Metal Dichalcogenides ◽  
Critical Components ◽  
Topological Crystalline Insulator

AbstractSpin current generators are critical components for spintronics-based information processing. In this work, we theoretically and computationally investigate the bulk spin photovoltaic (BSPV) effect for creating DC spin current under light illumination. The only requirement for BSPV is inversion symmetry breaking, thus it applies to a broad range of materials and can be readily integrated with existing semiconductor technologies. The BSPV effect is a cousin of the bulk photovoltaic (BPV) effect, whereby a DC charge current is generated under light. Thanks to the different selection rules on spin and charge currents, a pure spin current can be realized if the system possesses mirror symmetry or inversion-mirror symmetry. The mechanism of BSPV and the role of the electronic relaxation time $$\tau$$ τ are also elucidated. We apply our theory to several distinct materials, including monolayer transition metal dichalcogenides, anti-ferromagnetic bilayer MnBi2Te4, and the surface of topological crystalline insulator cubic SnTe.

scholarly journals Edge-spin accumulation in semiconductor two-dimensional hole gases

2005 ◽  
Vol 72 (24) ◽  
Author(s):  
K. Nomura ◽  
J. Wunderlich ◽  
Jairo Sinova ◽  
B. Kaestner ◽  
A. H. MacDonald ◽  
...  
Keyword(s):  
Spin Accumulation ◽  
Two Dimensional ◽  
Edge Spin

scholarly journals Chiral Magneto-Electrochemistry

2018 ◽  
Vol 4 (3) ◽  
pp. 36 ◽  
Author(s):  
Anup Kumar ◽  
Prakash Mondal ◽  
Claudio Fontanesi
Keyword(s):  
Magnetic Field ◽  
Experimental Studies ◽  
Spin Accumulation ◽  
Chiral Molecules ◽  
Electrochemical System ◽  
Ferromagnetic Electrodes ◽  
Spin Polarized ◽  
The Magnetic Field ◽  
Research Domain

Magneto-electrochemistry (MEC) is a unique paradigm in science, where electrochemical experiments are carried out as a function of an applied magnetic field, creating a new horizon of potential scientific interest and technological applications. Over time, detailed understanding of this research domain was developed to identify and rationalize the possible effects exerted by a magnetic field on the various microscopic processes occurring in an electrochemical system. Notably, until a few years ago, the role of spin was not taken into account in the field of magneto-electrochemistry. Remarkably, recent experimental studies reveal that electron transmission through chiral molecules is spin selective and this effect has been referred to as the chiral-induced spin selectivity (CISS) effect. Spin-dependent electrochemistry originates from the implementation of the CISS effect in electrochemistry, where the magnetic field is used to obtain spin-polarized currents (using ferromagnetic electrodes) or, conversely, a magnetic field is obtained as the result of spin accumulation.

SPIN-DEPENDENT BEATS CREATED BY IRRADIATION OF MICROWAVE FIELD THROUGH A QUANTUM DOT

2011 ◽  
Vol 25 (25) ◽  
pp. 2033-2039
Author(s):  
M. BAGHERI TAGANI ◽  
H. RAHIMPOUR SOLEIMANI
Keyword(s):  
Magnetic Field ◽  
Quantum Dot ◽  
Microwave Field ◽  
Spin Current ◽  
Tunneling Magnetoresistance ◽  
Rate Equations ◽  
Spin Accumulation ◽  
Spin Dependent Transport ◽  
Field Temperature ◽  
Dependent Transport

We study spin-dependent transport through a quantum dot with Zeeman split levels coupled to ferromagnetic leads and under influence of microwave irradiation. Current polarization, spin current, spin accumulation and tunneling magnetoresistance are analyzed using nonequilibrium Green's function formalism and rate equations. Spin-dependent beats in spin resolved currents are observed. The effects of magnetic field, temperature and Coulomb interaction on these beats are studied.

scholarly journals Spin-orbit torques and spin accumulation in FePt/Pt and Co/Cu thin films from first principles: The role of impurities

2016 ◽  
Vol 93 (22) ◽  
Author(s):  
Guillaume Géranton ◽  
Bernd Zimmermann ◽  
Nguyen H. Long ◽  
Phivos Mavropoulos ◽  
Stefan Blügel ◽  
...  
Keyword(s):  
Thin Films ◽  
First Principles ◽  
Spin Accumulation ◽  
Spin Orbit
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