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Phys. Rev. B 84, 020415(R) (2011) [4 pages]

Surface magnetic canting of iron films

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Taizo Kawauchi*, Katsuyuki Fukutani, Masuaki Matsumoto, Katsuro Oda, and Tatsuo Okano
Institute of Industrial Science, The University of Tokyo, Komaba, Meguro-ku, Tokyo, 153-8505, Japan

Xiao Wei Zhang and Shunji Kishimoto
Institute of Materials Structure Science, High Energy Accelerator Research Organization, Oho, Tsukuba, Ibaraki, 305-0801, Japan

Yoshitaka Yoda
Japan Synchrotron Radiation Research Institute, Kouto, Sayo-cho, Sayo-gun, Hyogo, 679-5198, Japan

Received 10 June 2011; published 29 July 2011

The magnetization direction of α-Fe thin films was investigated by means of quantum-beat spectroscopy using nuclear resonant scattering in the glancing-incidence regime and conversion-electron Mössbauer spectroscopy (CEMS). The CEMS results show that the mean magnetization of the films is in plane. Quantum-beat data, on the other hand, reveal that perpendicular components are present in the magnetization at the film surfaces, indicating that the magnetization cants from the in-plane to the perpendicular direction near the surfaces.

©2011 American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.84.020415
DOI:
10.1103/PhysRevB.84.020415
PACS:
75.70.Rf, 75.30.Gw, 75.50.Bb, 76.80.+y

*kawauchi@iis.u-tokyo.ac.jp

 
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