English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

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

MPS-Authors
/persons/resource/persons194803

Oka,  Takashi
Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

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, pp. 1-10. doi:10.1103/PhysRevB.96.014406.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-AFDA-9
Abstract
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.