Charge pumping and the colored thermal voltage noise in spin valves

Jiang Xiao, Gerrit E.W. Bauer, Sadamichi Maekawa, Arne Brataas

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Spin pumping by a moving magnetization gives rise to an electric voltage over a spin valve. Thermal fluctuations of the magnetization manifest themselves as increased thermal voltage noise with absorption lines at the ferromagnetic resonance frequency and/or zero frequency. The effect depends on the magnetization configuration and can be of the same order of magnitude as the Johnson-Nyquist thermal noise. Measuring colored voltage noise is an alternative to ferromagnetic resonance experiments for nanoscale ferromagnetic circuits.

本文言語English
論文番号174415
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
79
17
DOI
出版ステータスPublished - 2009 5月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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