CoPt3合金薄膜中生长诱导的磁各向异性和化学各向异性。

Growth induced magnetic and chemical anisotropy in CoPt3 alloy films.

作者信息

Cross J O, Newville M, Hellman F, Rooney P W, Shapiro A L, Harris V G

机构信息

PNC-CAT, Advanced Photon Source, Argonne National Laboratory, IL 60439, USA.

出版信息

J Synchrotron Radiat. 2001 Mar 1;8(Pt 2):880-2. doi: 10.1107/s0909049501000309.

DOI:10.1107/s0909049501000309

PMID:11512965

Abstract

We report the results of polarized Co EXAFS experiments on a series of CoPt3 films grown by molecular beam epitaxy on (100) MgO singe crystal substrates over a range of temperatures from 473 K to 1073 K. These samples exhibit substantial perpendicular magnetic anisotropy that is strongly dependent on the substrate growth temperature Tg. We measure a preference for in-plane Co-Co pairs that is correlated with the magnetic properties.

摘要

我们报告了在一系列通过分子束外延在（100）MgO 单晶衬底上生长的 CoPt3 薄膜上进行的偏振 Co 扩展 X 射线吸收精细结构（EXAFS）实验结果，温度范围为 473 K 至 1073 K。这些样品表现出显著的垂直磁各向异性，且该各向异性强烈依赖于衬底生长温度 Tg。我们测量了与磁性能相关的面内 Co-Co 对的偏好性。