Probing and controlling spin chirality in Mott insulators by circularly polarized laser

Scalar spin chirality, a three-body spin correlation that breaks time-reversal symmetry, is revealed to couple directly to circularly polarized laser. This is shown by the Floquet formalism for the periodically driven repulsive Hubbard model with a strong-coupling expansion. A systematic derivation...

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Veröffentlicht in:	Physical review. B 2017-07, Vol.96 (1), Article 014406
Hauptverfasser:	Kitamura, Sota, Oka, Takashi, Aoki, Hideo
Format:	Artikel
Sprache:	eng
Schlagworte:	Chirality Circular polarization Coupling Dichroism Insulators
Online-Zugang:	Volltext
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