Influence of laser pulse shaping on the ultrafast dynamics in antiferromagnetic NiO

Andrea Rubano, Takuya Satoh, Alexey Kimel, Andrey Kirilyuk, Theo Rasing, Manfred Fiebig

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Femtosecond laser excitation of antiferromagnetic NiO leads to an oscillatory temporal behavior of optical second-harmonic generation in this material. Depending on laser pulse length, these oscillations have frequencies of either 55 or 1 GHz, which correspond to the magnetic anisotropy energy separating the ground state with spins along the 11 2̄ axis from the excited states with spins along the 111 or 1 1̄ 0 axis, respectively. The oscillations can be explained as beatings between the ground and the respective excited state triggered by an instantaneous laser-induced flip of the Ni2⊃+ spins which can thus be controlled three dimensionally by pulse shaping.

Original languageEnglish
Article number174431
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume82
Issue number17
DOIs
Publication statusPublished - Nov 23 2010

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Influence of laser pulse shaping on the ultrafast dynamics in antiferromagnetic NiO'. Together they form a unique fingerprint.

  • Cite this