TY - JOUR
T1 - Skyrmion-generated spinmotive forces in inversion broken ferromagnets
AU - Yamane, Yuta
AU - Ieda, Jun'ichi
N1 - Funding Information:
The authors appreciate K. Yamamoto and B. F. McKeever for valuable comments on the manuscript. This research was supported by Research Fellowship for Young Scientists (No. 17J03368 ) from Japan Society for the Promotion of Science (JSPS), and Grant-in-Aid for Scientific Research (C) (No. 16K05424) from JSPS.
PY - 2019/12/1
Y1 - 2019/12/1
N2 - We present an analytical study on the spinmotive force (SMF) generated by translational motion of magnetic skyrmion. A SMF refers to an electrical voltage induced by dynamical magnetic textures, which reflects the spatiotemporal variation of the magnetization. The dynamics of a skyrmion thus can be detected by a SMF measurement, which may play an important role in future skyrmion-based technologies. We find the dependence of the SMF on skyrmion structure (e.g., skyrmion or anti-skyrmion, Néel or Bloch type, and the polarity of the skyrmion core) and Rashba and Dresselhaus spin-orbit couplings (SOCs). To this end, we derive explicit formulae for the spin-dependent electric fields originating from the two SOCs. Our findings offer a comprehensive understanding of the phenomenon and an estimation of the electrical voltage signal associated with a moving skyrmion for a given experiment.
AB - We present an analytical study on the spinmotive force (SMF) generated by translational motion of magnetic skyrmion. A SMF refers to an electrical voltage induced by dynamical magnetic textures, which reflects the spatiotemporal variation of the magnetization. The dynamics of a skyrmion thus can be detected by a SMF measurement, which may play an important role in future skyrmion-based technologies. We find the dependence of the SMF on skyrmion structure (e.g., skyrmion or anti-skyrmion, Néel or Bloch type, and the polarity of the skyrmion core) and Rashba and Dresselhaus spin-orbit couplings (SOCs). To this end, we derive explicit formulae for the spin-dependent electric fields originating from the two SOCs. Our findings offer a comprehensive understanding of the phenomenon and an estimation of the electrical voltage signal associated with a moving skyrmion for a given experiment.
KW - Dresselhaus spin-orbit interaction
KW - Rashba spin-orbit interaction
KW - Skyrmion
KW - Spinmotive force
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U2 - 10.1016/j.jmmm.2019.165550
DO - 10.1016/j.jmmm.2019.165550
M3 - Article
AN - SCOPUS:85068559464
VL - 491
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
M1 - 165550
ER -