Anomalous Hall and Nernst Effects in 2D Systems: Role of Cubic Rashba Spin-Orbit Coupling

2018 ◽  
Vol 12 (10) ◽  
pp. 1800232 ◽  
Author(s):  
Anna Krzyżewska ◽  
Anna Dyrdał ◽  
Józef Barnaś ◽  
Jamal Berakdar
Keyword(s):  
Orbit Coupling ◽  
2D Systems ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin

scholarly journals Dzyaloshinskii–Moriya interaction in noncentrosymmetric superlattices

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Woo Seung Ham ◽  
Abdul-Muizz Pradipto ◽  
Kay Yakushiji ◽  
Kwangsu Kim ◽  
Sonny H. Rhim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Degrees Of Freedom ◽  
Orbit Coupling ◽  
Inversion Symmetry ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Band Formation ◽  
Research Activities ◽  
Moriya Interaction

AbstractDzyaloshinskii–Moriya interaction (DMI) is considered as one of the most important energies for specific chiral textures such as magnetic skyrmions. The keys of generating DMI are the absence of structural inversion symmetry and exchange energy with spin–orbit coupling. Therefore, a vast majority of research activities about DMI are mainly limited to heavy metal/ferromagnet bilayer systems, only focusing on their interfaces. Here, we report an asymmetric band formation in a superlattices (SL) which arises from inversion symmetry breaking in stacking order of atomic layers, implying the role of bulk-like contribution. Such bulk DMI is more than 300% larger than simple sum of interfacial contribution. Moreover, the asymmetric band is largely affected by strong spin–orbit coupling, showing crucial role of a heavy metal even in the non-interfacial origin of DMI. Our work provides more degrees of freedom to design chiral magnets for spintronics applications.

Strain Effects on Rashba Spin‐Orbit Coupling of 2D Hole Gases in GeSn/Ge Heterostructures

2021 ◽  
pp. 2007862
Author(s):  
Chia‐Tse Tai ◽  
Po‐Yuan Chiu ◽  
Chia‐You Liu ◽  
Hsiang‐Shun Kao ◽  
C. Thomas Harris ◽  
...  
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Strain Effects ◽  
Rashba Spin

scholarly journals Random Rashba spin-orbit coupling at the quantum spin Hall edge

2014 ◽  
Vol 89 (23) ◽  
Author(s):  
Florian Geissler ◽  
François Crépin ◽  
Björn Trauzettel
Keyword(s):  
Quantum Spin ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Rashba Spin ◽  
Quantum Spin Hall
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