scholarly journals Spin injection and detection via the anomalous spin Hall effect of a ferromagnetic metal

2017 ◽  
Vol 96 (22) ◽  
Author(s):  
K. S. Das ◽  
W. Y. Schoemaker ◽  
B. J. van Wees ◽  
I. J. Vera-Marun
2007 ◽  
Vol 91 (12) ◽  
pp. 122508 ◽  
Author(s):  
S. Y. Liu ◽  
Norman J. M. Horing ◽  
X. L. Lei

AIP Advances ◽  
2012 ◽  
Vol 2 (3) ◽  
pp. 032147 ◽  
Author(s):  
M.-J. Xing ◽  
M. B. A. Jalil ◽  
Seng Ghee Tan ◽  
Y. Jiang

2009 ◽  
Vol 23 (11) ◽  
pp. 2413-2438 ◽  
Author(s):  
SERGIO O. VALENZUELA

In recent years, electrical spin injection and detection has grown into a lively area of research in the field of spintronics. Spin injection into a paramagnetic material is usually achieved by means of a ferromagnetic source, whereas the induced spin accumulation or associated spin currents are detected by means of a second ferromagnet or the reciprocal spin Hall effect, respectively. This article reviews the current status of this subject, describing both recent progress and well-established results. The emphasis is on experimental techniques and accomplishments that brought about important advances in spin phenomena and possible technological applications. These advances include, amongst others, the characterization of spin diffusion and precession in a variety of materials, such as metals, semiconductors and graphene, the determination of the spin polarization of tunneling electrons as a function of the bias voltage, and the implementation of magnetization reversal in nanoscale ferromagnetic particles with pure spin currents.


Author(s):  
S. Takahashi ◽  
S. Maekawa

This chapter discusses the spin Hall effect that occurs during spin injection from a ferromagnet to a nonmagnetic conductor in nanostructured devices. This provides a new opportunity for investigating AHE in nonmagnetic conductors. In ferromagnetic materials, the electrical current is carried by up-spin and downspin electrons, with the flow of up-spin electrons being slightly deflected in a transverse direction while that of down-spin electrons being deflected in the opposite direction; this results in an electron flow in the direction perpendicular to both the applied electric field and the magnetization directions. Since up-spin and downspin electrons are strongly imbalanced in ferromagnets, both spin and charge currents are generated in the transverse direction by AHE, the latter of which are observed as the electrical Hall voltage.


Author(s):  
J. Wunderlich ◽  
K. Olejník ◽  
L. P. Zârbo ◽  
V. P. Amin ◽  
J. Sinova ◽  
...  

This chapter discusses the Spin-injection Hall effect (SiHE), another member of the spin-dependent Hall effects that is closely related to the anomalous Hall effect (AHE), the spin Hall effect (SHE), and the inverse spin Hall effect (iSHE). The microscopic origins responsible for the appearance of spin-dependent Hall effects are due to the spin-orbit (SO) coupling-related asymmetrical deflections of spin carriers. Depending on the relative strength of the SO coupling compared to the energy-level broadening of the quasi-particle states due to disorder scattering, scattering-related extrinsic mechanisms or intrinsic band structure-related deflection dominate the spin-dependent Hall response. Both the iSHE and the SiHE require spin injection into a nonmagnetic system. Similar to the AHE, a spin-polarized charge current flows in the case of the SiHE and the SO coupling generates the spin-dependent Hall signal.


2013 ◽  
Vol 111 (6) ◽  
Author(s):  
B. F. Miao ◽  
S. Y. Huang ◽  
D. Qu ◽  
C. L. Chien

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