Circular dichroism in Floquet Chern insulator via high-order harmonics spectroscopy

Author:

Kim JeailORCID,Kim DasolORCID,Kim Dong Eon,Chacón AlexisORCID

Abstract

Abstract High-order harmonics (HOHs) spectroscopy is attracting the attention of the condensed matter community, mostly because the HOHs spectrum encode the material property. Topological materials are of interest for both basic research and advanced technologies because of their robust properties against dissipation and perturbations. Floquet engineering technique have been demonstrated to be a unique tool to manipulate topological phase. In this paper, we apply HOH spectroscopy to characterize the Floquet state via the circular dichroism (CD). We find that the CD of the co-rotating harmonics is sensitive to Floquet topological states

Funder

National Research Foundation of Korea

Ministry of Trade, Industry and Energy

Publisher

IOP Publishing

Subject

Condensed Matter Physics,General Materials Science

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