Strain and anisotropy effects on spin waves in epitaxial La 0.67Sr 0.33MnO 3 films

D. Talbayev, H. Zhao, G. Lüpke, J. Chen, Qi Li

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Abstract

Uniform magnetization precession in the ferromagnetic state of La0.67 Sr0.33 Mn O3 films grown on different substrates is investigated in the 50-300 K temperature range in magnetic fields of up to 1.3 T. The precession was induced by an optical pump pulse and probed by a time-delayed pulse using magneto-optical Kerr effect. The measured field dependence of the precession frequency agrees well with calculation from the Landau-Lifshitz-Gilbert equation using different uniaxial anisotropies for different substrates. The field-dependent relaxation times of the exponentially decaying precession are in 100-1400 ps range.

Original languageEnglish (US)
Article number182501
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number18
DOIs
Publication statusPublished - May 2 2005

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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