Ferromagnetic resonance of sputtered yttrium iron garnet nanometer films

Tao Liu, Houchen Chang, Vincent Vlaminck, Yiyan Sun, Michael Kabatek, Axel Hoffmann, Longjiang Deng, Mingzhong Wu

Research output: Contribution to journalArticlepeer-review


Growth of nm-thick yttrium iron garnet (YIG) films by sputtering and ferromagnetic resonance (FMR) properties in the films were studied. The FMR linewidth of the YIG film decreased as the film thickness was increased from several nanometers to about 100 nm. For films with very smooth surfaces, the linewidth increased linearly with frequency. In contrast, for films with big grains on the surface, the linewidth-frequency response was strongly nonlinear. Films in the 7-26 nm thickness range showed a surface roughness between 0.1 nm and 0.4 nm, a 9.48-GHz FMR linewidth in the 6-10 Oe range, and a damping constant of about 0.001.

Original languageEnglish (US)
Article number17A501
JournalJournal of Applied Physics
Issue number17
StatePublished - May 7 2014
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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