scholarly journals Relation between spin Hall effect and anomalous Hall effect in 3d ferromagnetic metals

2019 ◽  
Vol 99 (1) ◽  
Author(s):  
Yasutomo Omori ◽  
Edurne Sagasta ◽  
Yasuhiro Niimi ◽  
Martin Gradhand ◽  
Luis E. Hueso ◽  
...  
2016 ◽  
Vol 2 (4) ◽  
pp. e1501870 ◽  
Author(s):  
Ajaya K. Nayak ◽  
Julia Erika Fischer ◽  
Yan Sun ◽  
Binghai Yan ◽  
Julie Karel ◽  
...  

It is well established that the anomalous Hall effect displayed by a ferromagnet scales with its magnetization. Therefore, an antiferromagnet that has no net magnetization should exhibit no anomalous Hall effect. We show that the noncolinear triangular antiferromagnet Mn3Ge exhibits a large anomalous Hall effect comparable to that of ferromagnetic metals; the magnitude of the anomalous conductivity is ~500 (ohm·cm)−1 at 2 K and ~50 (ohm·cm)−1 at room temperature. The angular dependence of the anomalous Hall effect measurements confirms that the small residual in-plane magnetic moment has no role in the observed effect except to control the chirality of the spin triangular structure. Our theoretical calculations demonstrate that the large anomalous Hall effect in Mn3Ge originates from a nonvanishing Berry curvature that arises from the chiral spin structure, and that also results in a large spin Hall effect of 1100 (ħ/e) (ohm·cm)−1, comparable to that of platinum. The present results pave the way toward the realization of room temperature antiferromagnetic spintronics and spin Hall effect–based data storage devices.


2017 ◽  
Vol 95 (7) ◽  
Author(s):  
Yang Zhang ◽  
Yan Sun ◽  
Hao Yang ◽  
Jakub Železný ◽  
Stuart P. P. Parkin ◽  
...  

2015 ◽  
Vol 117 (17) ◽  
pp. 17D901 ◽  
Author(s):  
Sang-Il Kim ◽  
Dong-Jun Kim ◽  
Min-Su Seo ◽  
Byong-Guk Park ◽  
Seung-Young Park

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