Scanning tunneling microscopy observations of single-crystal FeMgOFe magnetic tunnel junctions

M. Mizuguchi, Y. Suzuki, T. Nagahama, S. Yuasa

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Scanning tunneling microscopy observations of a single-crystal Fe (001) MgO (001) Fe (001) magnetic tunnel junction which shows a large tunnel magnetoresistance effect were performed. Step-and-terrace structures of an epitaxial MgO barrier layer, which are very similar to surfaces of a bottom Fe underlayer, were observed. This indicates that the MgO terraces were grown flatly on each terrace of the Fe electrode. It is supposed that these atomically flat terraces enable a coherent tunneling of electrons through magnetic tunnel junctions.

本文言語English
論文番号08T308
ジャーナルJournal of Applied Physics
99
8
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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