Direct observation of ferromagnetic spin polarization in gold nanoparticles

Y. Yamamoto, T. Miura, M. Suzuki, N. Kawamura, H. Miyagawa, T. Nakamura, K. Kobayashi, T. Teranishi, H. Hori

研究成果: Article査読

279 被引用数 (Scopus)

抄録

The observation of ferromagnetic spin polarization of Au nanoparticles with a mean diameter of 1.9 nm using magnetic circular dichroism (XMCD) was presented. The gold magnetization was explored, owing to the element selectivity of XMCD. It was observed that the magnetization of gold atoms, estimated by XMCD, shows a good agreement with results obtained by conventional magnetometry. It was found that the magnetization of Au nanoparticles consist of a superparamagnetic part obeying the Curie law and a temperature-independent Pauli-paramagnetic part, suggested by the external magnetic field and temperature dependence of the element-specific magnetization (ESM) signal.

本文言語English
論文番号116801
ページ(範囲)116801-1-116801-4
ジャーナルPhysical review letters
93
11
DOI
出版ステータスPublished - 2004 9 10
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Direct observation of ferromagnetic spin polarization in gold nanoparticles」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル