Quantum anomalous Hall effect induced by circularly polarized light on samarium hexaboride surface
We examine a time-dependent, surface Hamiltonian for the 3D compound samarium hexaboride based on the slave boson protocol linked version of the periodic Anderson model reported earlier. The problem of large on-site electron-electron repulsion was reformulated in terms of a holonomic constraint invo...
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Zusammenfassung: | We examine a time-dependent, surface Hamiltonian for the 3D compound samarium
hexaboride based on the slave boson protocol linked version of the periodic
Anderson model reported earlier. The problem of large on-site electron-electron
repulsion was reformulated in terms of a holonomic constraint involving a term
representing the spatially-independent Slave boson-condensate. In this
communication, we show the possible access to the quantum anomalous Hall state
due to the normal incidence of circularly polarized light on the surface of the
compound in the high frequency limit within the framework of the Floquet
theory. The value of the term is mildly affected by the intensity of incident
radiation. The chern number is found to be unity for the right-handed as well
as the left-handed circularly polarized light. |
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DOI: | 10.48550/arxiv.2302.04039 |