Ultrafast spin and lattice dynamics in antiferromagnetic Cr2 O3

Takuya Satoh, Bas B. Van Aken, Nguyen Phuc Duong, Thomas Lottermoser, Manfred Fiebig

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Abstract

The spin and lattice dynamics of antiferromagnetic bulk Cr2 O3 after excitation with an intense laser pulse were investigated using amplitude and phase resolved optical second-harmonic generation as probe of the magnetic and crystallographic subsystems. Demagnetization occurs on three time scales ranging from 1 to ∼7 ps. In comparison to ferromagnetic compounds, this is a two orders of magnitude faster response and an additional spin-lattice interaction channel is observed.

Original languageEnglish
Article number155406
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number15
DOIs
Publication statusPublished - Apr 9 2007

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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