Theoretically predicted picosecond optical switching of spin chirality in multiferroics

Masahito Mochizuki*, Naoto Nagaosa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

60 Citations (Scopus)


We show theoretically with an accurate spin Hamiltonian describing the multiferroic Mn perovskites that the application of the picosecond optical pulse with a terahertz frequency can switch the spin chirality through intensely exciting the electromagnons. There are four states with different spin chiralities, i.e., clockwise and counterclockwise ab/bc-plane spin spirals, and by tuning the strength, shape and length of the pulse, the switching among these states can be controlled at will. Dynamical pattern formation during the switching is also discussed.

Original languageEnglish
Article number147202
JournalPhysical Review Letters
Issue number14
Publication statusPublished - 2010 Sept 28
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


Dive into the research topics of 'Theoretically predicted picosecond optical switching of spin chirality in multiferroics'. Together they form a unique fingerprint.

Cite this