Spin dynamics in oxide glass of Fe2O3-Bi2O3-B2O3 system

Hirofumi Akamatsu, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai

研究成果: Contribution to journalArticle査読

14 被引用数 (Scopus)

抄録

We have investigated magnetic aging and memory effects in the magnetically ordered phase of 32Fe2O3·48Bi2O3·20B2O3 (mol%) glass, which exhibits a spin glass-like transition at about 15 K (Tsg) and a superparamagnetic blocking at about 28 K (Tsp). The present glass manifests magnetic aging effects similar to those observed in spin glasses in the temperature regimes of not only T<Tsg but also Tsg<T<Tsp, indicating that superparamagnetic clusters existing in the glass strongly interact with each other. The interactions among the magnetic clusters lead to cooperative spin dynamics as observed in superspin glasses.

本文言語英語
ページ(範囲)1506-1507
ページ数2
ジャーナルJournal of Magnetism and Magnetic Materials
310
2 SUPPL. PART 2
DOI
出版ステータス出版済み - 3 1 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Spin dynamics in oxide glass of Fe<sub>2</sub>O<sub>3</sub>-Bi<sub>2</sub>O<sub>3</sub>-B<sub>2</sub>O<sub>3</sub> system」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。

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