論文

査読有り
2017年7月

Non-collinear Magnetic Structure on the Fe3O4(111) Surface

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Kanta Asakawa
  • ,
  • Taizo Kawauchi
  • ,
  • Xiao Wei Zhang
  • ,
  • Katsuyuki Fukutani

86
7
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.7566/JPSJ.86.074601
出版者・発行元
PHYSICAL SOC JAPAN

The magnetic structure of an Fe3O4(111) surface was observed at room temperature by nuclear resonant X-ray scattering (NRS) and conversion electron Mossbauer spectroscopy (CEMS). The depth dependence of the magnetic structure was investigated by using natural and (Fe3O4)-Fe-57-deposited Fe3O4( 111) surfaces. The CEMS results showed that the magnetization direction of the near-surface regionis close to the non-perpendicular easy-magnetization axes. The NRS results showed that the (111) surface includes in-plane magnetization components, suggesting that the surface contains domains that are magnetized along non-perpendicular directions. These results are consistent with the idea that the surface is covered with closure domains with magnetization along the non-perpendicular easy-magnetization directions. It was also found that, near the surface, the spin direction of the Fe(B) site is more parallel to the surface than the non-perpendicular easy axes while that of the Fe(A) site corresponds to the easy axes. This indicates that the spins of the Fe(A) and Fe(B) sites are non-collinear in the near-surface region. The thickness of this Fe(B) canting layer is estimated to be larger than the probing depth of CEMS (45-60 nm).

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.7566/JPSJ.86.074601
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000404636200019&DestApp=WOS_CPL