TY - JOUR
T1 - Dzyaloshinskii-Moriya Interaction as a Consequence of a Doppler Shift due to Spin-Orbit-Induced Intrinsic Spin Current
AU - Kikuchi, Toru
AU - Koretsune, Takashi
AU - Arita, Ryotaro
AU - Tatara, Gen
N1 - Funding Information:
This work was supported by a Grant-in-Aid for Scientific Research (C)(Grant No.25400344) from the Japan Society for the Promotion of Science and a Grant-in-Aid for Scientific Research on Innovative Areas (Grant No.26103006) from The Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan. The work of T. Koretsune was supported by JST, PRESTO.
Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/6/13
Y1 - 2016/6/13
N2 - We present a physical picture for the emergence of the Dzyaloshinskii-Moriya (DM) interaction based on the idea of the Doppler shift by an intrinsic spin current induced by spin-orbit interaction under broken inversion symmetry. The picture is confirmed by a rigorous effective Hamiltonian theory, which reveals that the DM coefficient is given by the magnitude of the intrinsic spin current. Our approach is directly applicable to first principles calculations and clarifies the relation between the interaction and the electronic band structures. Quantitative agreement with experimental results is obtained for the skyrmion compounds Mn1-xFexGe and Fe1-xCoxGe.
AB - We present a physical picture for the emergence of the Dzyaloshinskii-Moriya (DM) interaction based on the idea of the Doppler shift by an intrinsic spin current induced by spin-orbit interaction under broken inversion symmetry. The picture is confirmed by a rigorous effective Hamiltonian theory, which reveals that the DM coefficient is given by the magnitude of the intrinsic spin current. Our approach is directly applicable to first principles calculations and clarifies the relation between the interaction and the electronic band structures. Quantitative agreement with experimental results is obtained for the skyrmion compounds Mn1-xFexGe and Fe1-xCoxGe.
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U2 - 10.1103/PhysRevLett.116.247201
DO - 10.1103/PhysRevLett.116.247201
M3 - Article
AN - SCOPUS:84975496137
SN - 0031-9007
VL - 116
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 247201
ER -