Photoinduced interfacial chiral modes in threefold topological semimetal

We investigate the chiral electronic modes at the interface between two regions of a threefold topological semimetal, which is illuminated by left and right handed elliptically polarized waves. The radiation effects on the band structure of semimetal are analyzed by using Floquet theory. Two distinc...

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Bibliographic Details
Published in:Physical review. B 2019-10, Vol.100 (16), Article 165302
Main Authors: Firoz Islam, SK, Zyuzin, A. A.
Format: Article
Language:English
Subjects:
Chirality
Radiation effects
Topology
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Summary:We investigate the chiral electronic modes at the interface between two regions of a threefold topological semimetal, which is illuminated by left and right handed elliptically polarized waves. The radiation effects on the band structure of semimetal are analyzed by using Floquet theory. Two distinct solutions of the interface modes are found with the chirality depending on the phase of the irradiation. We also consider the anomalous Hall response, which is attributed to the interband contribution between the dispersionless flat band and conic bands.
ISSN:2469-9950
2469-9969
DOI:10.1103/PhysRevB.100.165302