ヤマガミ ヒロシ   YAMAGAMI HIROSHI
  山上 浩志
   所属   京都産業大学  理学部 物理科学科
   職種   教授
言語種別 英語
発行・発表の年月 2004/09
形態種別 研究論文
査読 査読あり
標題 Magnetic dead layers induced by strain at fct Fe/Rh(001) interface
執筆形態 その他
掲載誌名 JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
出版社・発行元 PHYSICAL SOC JAPAN
巻・号・頁 73(9),pp.2550-2553
著者・共著者 K Hayashi,M Sawada,H Yamagami,A Kimura,A Kakizaki
概要 We have studied magnetic properties of face-centered-tetragonal (fct) Fe thin films grown at room temperature on the Rh(001) surface. Band structure calculations show that the stable magnetic phase of fct Fe on the Rh(001) surface is ferromagnetic (FM), which agrees with our previous conclusion obtained by angle-resolved photoelectron spectroscopy and spin- and angle-resolved photoelectron spectroscopy (SARPES) of the four monolayers (ML) Fe film [K. Hayashi et al.: Phys. Rev. B 64 (2001) 054417]. This magnetic phase of fct Fe is also confirmed by the SARPES spectra of 3 ML Fe/Rh(001). On the other hand the thickness dependence of the Curie temperature estimated by SARPES and of local magnetic moment by soft X-ray magnetic circular dichroism, experiments show that the Fe films below 2 ML are not FM, i.e., they are magnetic dead layers. We conclude that these magnetic dead layers are caused by a large strain at the Fe/Rh(001) interface.
DOI 10.1143/JPSJ.73.2550
ISSN 0031-9015