Epitaxial growth and magnetic characterization of ferromagnetic Co4N thin films on SrTiO3(001) substrates by molecular beam epitaxy

被引：36

作者：

Ito, Keita ^{[1
]}

Harada, Kazunori ^{[1
]}

Toko, Kaoru ^{[1
]}

Akinaga, Hiro ^{[2
]}

Suemasu, Takashi ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Appl Phys, Tsukuba, Ibaraki 3058573, Japan

[2] ICAN, Natl Inst Adv Ind Sci & Technol AST, Tsukuba, Ibaraki 3058569, Japan

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 336卷 / 01期

关键词：

Molecular beam epitaxy; Co4N; SrTiO3; Ferromagnetic material; PHASE;

D O I：

10.1016/j.jcrysgro.2011.09.038

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have attempted to grow single-crystalline Co4N thin films on SrTiO3 (STO)(001) substrates by molecular beam epitaxy by the simultaneous supply of 3N-Co and radio-frequency NH3 plasma. Reflection high-energy electron diffraction and theta-2 theta X-ray diffraction patterns confirmed that the epitaxial growth of Co4N films was successfully achieved. X-ray phi-scan measurements using Co4N(301) and STO(301) diffractions revealed that the epitaxial relationship between Co4N and STO was a cube-on-cube type. Magnetization versus magnetic field curves measured at room temperature for Co4N epitaxial layers covered with a Au capping layer using a vibrating sample magnetometer showed that Co4N[110] is the axis of easy magnetization. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：40 / 43

页数：4

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