Unattenuated conical spin wave in spiral magnet: The role of Dzyaloshinskii-Moriya interaction

2011 ◽  
Vol 110 (5) ◽  
pp. 053918
Author(s):  
Y. J. Guo ◽  
Y. M. Tao ◽  
X. Chen ◽  
M. H. Qin ◽  
S. Dong ◽  
...  
Keyword(s):  
Spin Wave ◽  
Spiral Magnet ◽  
Moriya Interaction

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.

scholarly journals Spin wave mediated unidirectional vortex core reversal by two orthogonal monopolar field pulses: The essential role of three-dimensional magnetization dynamics

2016 ◽  
Vol 119 (17) ◽  
pp. 173901 ◽  
Author(s):  
Matthias Noske ◽  
Hermann Stoll ◽  
Manfred Fähnle ◽  
Ajay Gangwar ◽  
Georg Woltersdorf ◽  
...  
Keyword(s):  
Spin Wave ◽  
Vortex Core ◽  
Essential Role ◽  
Three Dimensional ◽  
Magnetization Dynamics

scholarly journals Quantitative accordance of Dzyaloshinskii-Moriya interaction between domain-wall and spin-wave dynamics

2019 ◽  
Vol 100 (22) ◽  
Author(s):  
Dae-Yun Kim ◽  
Nam-Hui Kim ◽  
Yong-Keun Park ◽  
Min-Ho Park ◽  
Joo-Sung Kim ◽  
...  
Keyword(s):  
Domain Wall ◽  
Spin Wave ◽  
Wave Dynamics ◽  
Moriya Interaction

scholarly journals Asymmetric spin-wave dispersion due to Dzyaloshinskii-Moriya interaction in an ultrathin Pt/CoFeB film

2015 ◽  
Vol 106 (5) ◽  
pp. 052403 ◽  
Author(s):  
Kai Di ◽  
Vanessa Li Zhang ◽  
Hock Siah Lim ◽  
Ser Choon Ng ◽  
Meng Hau Kuok ◽  
...  
Keyword(s):  
Spin Wave ◽  
Wave Dispersion ◽  
Moriya Interaction ◽  
Spin Wave Dispersion
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