Spin-wave resonances in La0.7Sr0.3MnO3 films: Measurement of spin-wave stiffness and anisotropy field

Golosovsky  M; Monod  P; Muduli  PKBudhani  RC

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Spin-wave resonances in La0.7Sr0.3MnO3 films: Measurement of spin-wave stiffness and anisotropy field

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摘要

We studied magnetic-field-dependent microwave absorption in epitaxial La0.7Sr0.3MnO3 films using an 9.5 GHz Bruker electron-spin-resonance spectrometer. By analyzing the angular and temperature dependence of the ferromagnetic and spin-wave resonances we determine spin-wave stiffness and perpendicular anisotropy field. The spin-wave stiffness as found from the spectrum of the standing spin-wave resonances in thin films is in fair agreement with the results of inelastic neutron scattering studies on a single crystal of the same composition.

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来源
《Physical review, B. Condensed matter and materials physics》 |2007年第18期|184413-1-184413-7-0|共7页
作者
Golosovsky M; Monod P; Muduli PKBudhani RC;
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作者单位

ESPCI, Lab Phys Solide, F-75231 Paris 05, France;

Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India;

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原文格式 PDF
正文语种英语
中图分类固体物理学;
关键词
MANGANITE THIN-FILMS; FERROMAGNETIC-RESONANCE; TEMPERATURE-DEPENDENCE; MAGNETIC EXCITATIONS; STRAIN; DYNAMICS; SPECTRA; SURFACE; BULK;

Spin-wave resonances in La0.7Sr0.3MnO3 films: Measurement of spin-wave stiffness and anisotropy field

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