Epitaxial growth and magnetic properties of MnxPt1-x (x ≤ 0.38) thin films on (001)-SrTiO3 substrates

被引：3

作者：

Borgschulte, A

Menzel, D

Widmer, T

Bremers, H

Barkow, U

Schoenes, J

机构：

[1] Tech Univ Braunschweig, Inst Halbleiterphys & Opt, D-38106 Braunschweig, Germany

[2] Tech Univ Braunschweig, Inst Met Phys & Nukl Festkorperphys, D-38106 Braunschweig, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 205卷 / 2-3期

关键词：

thin films; epitaxy; magnetic properties; magneto-optics;

D O I：

10.1016/S0304-8853(99)00476-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin epitaxial (001)-oriented MnxPt1-x films with 0 less than or equal to x < 0.38 were grown by molecular beam epitaxy on (001)SrTiO3 substrates. The structure and the growth mechanism have been investigated, RHEED patterns confirm the high structural quality of the MnxPt1-x films. A Volmer-Weber model is applied to describe the growth mechanism of MnPt3 on SrTiO3. X-ray diffraction measurements reveal a lattice parameter for MnPt3 of 3.89(5) Angstrom and a strong dependence of the lattice parameter on the Mn content. A possible strain-induced phase transition at higher Mn content is discussed. At room temperature a high saturation magnetization (M-s) of 680 emu/cm(3) is found which implies that a highly ordered phase of MnPt3 occurs. The Curie temperature is enhanced compared to non-strained films. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：151 / 160

页数：10

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