Journal
CHINESE PHYSICS B
Volume 28, Issue 7, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/28/7/078503
Keywords
magnon; light; Brillouin-Wigner theory; Dzyaloshinskii-Moriya
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Funding
- National Natural Science Foundation of China [61604106]
- Shandong Provincial Natural Science Foundation, China [ZR2014FL025]
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The topological magnon insulator on a honeycomb lattice with Dzyaloshinskii-Moriya interaction (DMI) is studied under the application of a circularly polarized light. At the high-frequency regime, the effective tight-binding model is obtained based on Brillouin-Wigner theory. Then, we study the corresponding Berry curvature and Chern number. In the Dirac model, the interplay between a light-induced handedness-dependent effective DMI and intrinsic DMI is discussed.
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