scholarly journals Spin-orbit coupling and spin waves in ultrathin ferromagnets: The spin-wave Rashba effect

2010 ◽  
Vol 82 (1) ◽  
Author(s):  
A. T. Costa ◽  
R. B. Muniz ◽  
S. Lounis ◽  
A. B. Klautau ◽  
D. L. Mills
2018 ◽  
Vol 2 (11) ◽  
pp. 115016 ◽  
Author(s):  
Avinash Singh ◽  
Shubhajyoti Mohapatra ◽  
Churna Bhandari ◽  
Sashi Satpathy

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jeehoon Jeon ◽  
Seong Won Cho ◽  
OukJae Lee ◽  
Jinki Hong ◽  
Joon Young Kwak ◽  
...  

AbstractMost studies of the Rashba effect have focused on interfacial Rashba spin–orbit coupling. Recently, bulk Rashba materials have attracted considerable interest owing to their potential to enhance the Rashba spin–orbit torque. By employing a bulk Rashba material, GeTe, as a spin–orbit channel in GeTe/NiFe bilayers, a large field-like spin–orbit torque up to 15.8 mT/(107 A cm−2) is measured. This value is one of the largest reported field-like torques and is attributed to the interfacial spin–orbit coupling being enhanced by the bulk Rashba effect in the GeTe channel. Furthermore, the large field-like torque is maintained even for a 20-nm-thick NiFe layer. This unconventional dependence on the thickness of both the GeTe and NiFe layers cannot be described by conventional theory, but it is believed to stem from the additional bulk Rashba effect-induced term. The large field-like torque over a wide range of ferromagnet thicknesses results in scalable in-plane spin–orbit torque devices. This result calls for a further theoretical study on spin transport in heterostructures, including bulk Rashba materials.


2017 ◽  
Vol 95 (10) ◽  
Author(s):  
Yuen Yiu ◽  
Manh Duc Le ◽  
Rasmus Toft-Peterson ◽  
Georg Ehlers ◽  
Robert J. McQueeney ◽  
...  

2017 ◽  
Vol 95 (13) ◽  
Author(s):  
Yuen Yiu ◽  
Manh Duc Le ◽  
Rasmus Toft-Petersen ◽  
Georg Ehlers ◽  
Robert J. McQueeney ◽  
...  

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