Correlation between the Magnetoresistance Ratio and the Interface Structure, and Local Strain of Co/Cu Superlattices Investigated by 59Co NMR

Yoshiaki Saito, Koichiro Inomata, Atsushi Goto

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Co/Cu superlattices were prepared by changing the Ar acceleration voltage (VB) in ion beam sputtering. VB dependence on the nanostructure of the interface alloy regions has been deduced from the 59Co nuclear magnetic resonance (NMR) spin-echo spectrum, and the correlation between the magnetoresistance (MR) ratio and interface structure was investigated. The results have shown that there is a correlation between the interlayer interaction and the interface chemical structure. The Co average fractions in the interface alloy regions are nearly uniform and equal to 50 at.% for superlattices having small Ap, and distributed for superlattices having large A p. Moreover, the local strain from the shift in the hyperfine field has been found to be correlated with the Co uniaxial anisotropy constant due to the strain from the epitaxial growth on Cu.

本文言語English
ページ(範囲)1450-1454
ページ数5
ジャーナルjournal of the physical society of japan
62
5
DOI
出版ステータスPublished - 1993 1 1
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

フィンガープリント

「Correlation between the Magnetoresistance Ratio and the Interface Structure, and Local Strain of Co/Cu Superlattices Investigated by <sup>59</sup>Co NMR」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