Perpendicular magnetic anisotropy of Pd-Co alloy films and related multilayers
Perpendicular magnetic anisotropy of Pd-Co alloy films and related multilayers
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Pd-Co合金薄膜及相关多层膜的垂直磁各向异性
DOI：
10.1109/20.42425
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
S. Uchiyama
中科院分区：
文献类型：
--
作者：
S. Tsunashima;K. Nagase;K. Nakamura;S. Uchiyama
易磁化轴垂直于薄膜平面。这种各向异性通常被认为起源于CO层与Pd层之间的界面或位于界面处的CO磁矩。磁致伸缩效应和界面合金化不被认为是其根源。然而，对Pd-Co合金膜的研究很少，其性质也不清楚。此外，据报道，-4 ℃时PdCo合金表现出高达-2r10的非常大的负磁致伸缩。这表明，合金薄膜是非常敏感的应力，由于衬底约束或晶格失配。大的磁致伸缩也表明，PdCo合金是非常敏感的晶场，这可能与所谓的界面各向异性在Pd/Co多层膜。在本文中，我们报告，真空沉积的钯钴合金薄膜具有极大的垂直各向异性。我们进一步报道了由PdCo合金层组成的多层膜的初步结果。Pd/Co多层膜具有良好的磁性，
with the easy axis perpendicular to the film plane . The anisotropy is usually considered to originate from the interface between CO and Pd layers or from CO moment which located at the interface. Magneto-strictive efffyt and alloying at the interface were not considered to be the origin ' . However, very few experiments have been done for Pd-Co alloy films and their properties are still not clarified. Furthermore, it has been reported-4 @at PdCo alloys exhibit very large negative magnetostriction up to -2r10 . This suggests that the alloy films are very sensitive to the stress due to the substrate constraint or lattice misfits. The large magnetostriction also suggests that PdCo alloys are very sensitive to the crystal field which may be related to so called interface anisotropy in Pd/Co multilayer films. In this paper, we report that vacuum deposited Pd-Co alloy films exhibits extremely large perpendicular anisotropy. We further report preliminary results for multilayer films'consists of PdCo alloy layers. Pd/Co multilayer films are known to exhibit 1affS)magnetlc