Electrical resistivity in ferromagnetic TM-Al-O (TM = Fe, Co) granular films: scattering by spin waves and kondo like behavior

Shintaro Nakamura, Tsutomu Nojima, Akira Yoshihara, Shigehiro Ohnuma, Hiroyasu Fujimori

研究成果: ジャーナルへの寄稿学術論文査読

7 被引用数 (Scopus)

抄録

We investigate the electrical resistivity of the ferromagnetic granular thin films TM-Al-O (TM = Fe, Co). The resistivity shows T 2behavior at low temperatures in all metallic samples. This strongly suggests scattering of conduction electrons by thermally excited ferromagnetic spin waves. Logarithmic Kondo like behavior (mdashlog T) in the resistivity and negative magnetoresistivity at low temperatures are observed. With decreasing concentration of transition metal, both the coefficients of the T 2and log T terms increase.

本文言語英語
論文番号074708
ジャーナルJournal of the Physical Society of Japan
78
7
DOI
出版ステータス出版済み - 2009 7月

フィンガープリント

「Electrical resistivity in ferromagnetic TM-Al-O (TM = Fe, Co) granular films: scattering by spin waves and kondo like behavior」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