Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

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

MPG-Autoren
/persons/resource/persons194803

Oka,  Takashi
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

Volltexte (beschränkter Zugriff)
Für Ihren IP-Bereich sind aktuell keine Volltexte freigegeben.
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte in PuRe verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Kitamura, S., Oka, T., & Aoki, H. (2017). Probing and controlling spin chirality in Mott insulators by circularly polarized laser. Physical Review B, 96(1): 014406. doi:10.1103/PhysRevB.96.014406.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-002D-D02F-8
Zusammenfassung
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 of the effective low-energy Hamiltonian for a spin degree of freedom reveals that the coupling constant for scalar spin chirality can become significant for a situation in which the driving frequency and the on-site interaction are comparable. This implies that the scalar chirality can be induced by circularly polarized lights, or that it can be used conversely for probing the chirality in Mott insulators as a circular dichroism.