Direct Evidence of a Nonorthogonal Magnetization Configuration in Single Crystalline Fe1−xCox/Rh/Fe/Rh(001) System

作     者：F. Yildiz M. Przybylski J. Kirschner 

作者机构：Max-Planck-Institut für Mikrostrukturphysik Weinberg 2 06120 Halle Germany Faculty of Physics and Applied Computer Science AGH University of Science and Technology Mickiewicza 30 30-059 Kraków Poland 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2009年第103卷第14期

页      面：147203-147203页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

主　　题：Magnetization 

摘      要：Tetragonal distortion in Fe1−xCox alloy films grown epitaxially on Rh(001) substrates results in a strong perpendicular magnetic anisotropy. Since the perpendicular magnetic anisotropy varies with the Fe1−xCox film composition, one can grow multilayer structures with ferromagnetic films sequentially showing either an in-plane (e.g., Fe) or out-of-plane (e.g., Fe0.5Co0.5) easy-magnetization axis. The Rh spacers mediate an interlayer coupling which couples the magnetizations either ferromagnetically or antiferromagnetically, depending on the spacer thickness. When the anisotropy energy is compatible to the coupling, it produces nonorthogonal magnetization configurations which vary under a small change of the external magnetic field.