Wide frequencies range of spin excitations in a rare-earth Bi-doped iron garnet with a giant Faraday rotation

Sergii Parchenko, Andrzej Stupakiewicz, Isao Yoshimine, Takuya Satoh, Andrzej Maziewski

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Ultrafast magnetization dynamics of a rare-earth Bi-doped garnet were studied using an optical pump-probe technique via the inverse Faraday effect. We observed a wide range of frequency modes of the magnetization precession, covering two orders of magnitude. The excitation efficiency of low-frequency precessions in the GHz range, together with a significant beating effect, strongly depended on the amplitude of the external magnetic field. On the contrary, high-frequency precession was independent of the external magnetic field. The obtained results may be exploited in the development of wide class of microwave and magneto-optical devices.

Original languageEnglish
Article number172402
JournalApplied Physics Letters
Volume103
Issue number17
DOIs
Publication statusPublished - Oct 21 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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