Parametric pumping of precession modes in ferromagnetic nanodisks

被引：29

作者：

Guo, Feng ^{[1
,2
]}

Belova, L. M. ^{[3
]}

McMichael, R. D. ^{[1
]}

机构：

[1] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Maryland Nanoctr, College Pk, MD 20742 USA

[3] Royal Inst Technol, Dept Mat Sci & Engn, S-10044 Stockholm, Sweden

来源：

PHYSICAL REVIEW B | 2014年 / 89卷 / 10期

基金：

瑞典研究理事会;

关键词：

YTTRIUM-IRON-GARNET; LIGHT-SCATTERING; RESONANCE; SOLITONS; FILMS;

D O I：

10.1103/PhysRevB.89.104422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the parametric excitation of magnetic precession modes in nanodisks using a parallel pumping configuration. The excitations are detected using a ferromagnetic resonance force microscopy method, and the parallel-pumped spectra reveal nonlinear characteristics including instability thresholds and multiple, narrow, sawtooth-shaped resonances. These characteristics are in accord with analytical theory and micromagnetic modeling results. Modeled mode profiles of the excitations show that higher-order standing spin-wave modes with both even and odd symmetries are excited under parallel pumping.

引用

页数：7

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