Negative exchange coupling in Nd2Fe14B(100)/ α -Fe interface

Daisuke Ogawa, Kunihiro Koike, Shigemi Mizukami, Takamichi Miyazaki, Mikihiko Ogane, Yasuo Ando, Hiroaki Kato

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A model sample with an interface of the Nd2Fe14B(100) plane and the α-Fe phase was fabricated in order to evaluate the exchange-coupling constant Jex between these two ferromagnetic phases. By measuring the ferromagnetic resonance fields and the Kerr loops, the Jex was confirmed to be negative with the value of Jex=-6.5×10-4 J/m2, in striking contrast to the positive Jex value for the Nd2Fe14B(001)/α-Fe(100) interface reported previously.

Original languageEnglish
Article number102406
JournalApplied Physics Letters
Volume107
Issue number10
DOIs
Publication statusPublished - 2015 Sep 7

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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