TY - JOUR
T1 - Nonreciprocal magnon propagation in a noncentrosymmetric ferromagnet LiFe5O8
AU - Iguchi, Y.
AU - Uemura, S.
AU - Ueno, K.
AU - Onose, Y.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/11/18
Y1 - 2015/11/18
N2 - In noncentrosymmetric materials, the relativistic effect extensively modifies the energy band of magnons as well as that of electrons. With use of microfabricated microwave antennae, we have demonstrated that the propagation of magnons with large momentum is nonreciprocal in a noncentrosymmetric ferromagnet LiFe5O8. The nonreciprocity is clearly explained by the effect of the asymmetric magnon band originating from the relativistic Dzyaloshinskii-Moriya interaction. This result may pave a new path to designing a magnonic device based on the relativistic band engineering.
AB - In noncentrosymmetric materials, the relativistic effect extensively modifies the energy band of magnons as well as that of electrons. With use of microfabricated microwave antennae, we have demonstrated that the propagation of magnons with large momentum is nonreciprocal in a noncentrosymmetric ferromagnet LiFe5O8. The nonreciprocity is clearly explained by the effect of the asymmetric magnon band originating from the relativistic Dzyaloshinskii-Moriya interaction. This result may pave a new path to designing a magnonic device based on the relativistic band engineering.
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U2 - 10.1103/PhysRevB.92.184419
DO - 10.1103/PhysRevB.92.184419
M3 - Article
AN - SCOPUS:84948650906
VL - 92
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 18
M1 - 184419
ER -