Structure and Magnetic Properties of CoNi Thin Films Epitaxially Grown on MgO(100) and SrTiO3(100) Substrates

被引：5

作者：

Sato, Yoichi ^{[1
]}

Nishiyama, Tsutomu ^{[1
]}

Ohtake, Mitsuru ^{[1
]}

Kirino, Fumiyoshi ^{[2
]}

Futamoto, Masaaki ^{[1
]}

机构：

[1] Chuo Univ, Fac Sci & Engn, Bunkyo Ku, Tokyo 1128551, Japan

[2] Tokyo Natl Univ Fine Arts & Mus, Grad Sch Fine Arts, Taito Ku, Tokyo 1108714, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 02期

基金：

日本学术振兴会;

关键词：

CoNi thin film; epitaxial growth; MgO(100); SrTiO3(100);

D O I：

10.1109/TMAG.2009.2032299

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

CoNi epitaxial thin films were prepared on MgO(100) and SrTiO3(100) single-crystal substrates by ultra-high vacuum molecular beam epitaxy. Effects of substrate temperature on the structural and magnetic properties of epitaxial films were investigated. On MgO(100) substrate, CoNi epitaxial films consisting of hcp(11 (2) over bar0) and fcc(100) crystals are obtained whereas on SrTiO3(100) substrate, CoNi(100) single-crystal films with fcc structure are formed. CoNi film growth on both substrates seems to follow the Volmer-Weber mode. CoNi(100)(fcc) single-crystal film with smaller strain is obtained on SrTiO3 substrate rather than on MgO(100) substrate. The film strain decreases with increasing the substrate temperature. The magnetic hysteresis loops of CoNi epitaxial thin films reflect the magnetocrystalline anisotropies of hcp-CoNi and fcc-CoNi crystals.

引用

页码：349 / 352

页数：4

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