Dependences of Coercivity and Remanence on Co Layer Thickness in (111)Pt/Co and Pt/Co/Ag Superlattices
Dependences of Coercivity and Remanence on Co Layer Thickness in (111)Pt/Co and Pt/Co/Ag Superlattices
复制标题
(111)Pt/Co 和 Pt/Co/Ag 超晶格中矫顽力和剩磁对 Co 层厚度的依赖性
DOI：
10.1143/jjap.33.l1406
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
T. Kingetsu
中科院分区：
文献类型：
--
作者：
T. Kingetsu
研究了（111）Pt/Co和Pt/Co/Ag超晶格的磁性和结构性质。样品是在373 K下用分子束外延方法在7×7-（111）Si衬底上制备的Ag缓冲层上生长的。Co层厚度（t）小于1.5nm的超晶格表现出垂直磁各向异性。详细地给出了Pt/Co超晶格的矫顽力（HC）与t的关系. Hc表现出t-5/2的依赖性，这在以前的报道中没有在外延Pt/Co/Pt楔形三明治结构中得到证实。
The magnetic and structural properties of (111)Pt/Co and Pt/Co/Ag superlattices were studied. The samples were grown at 373 K on Ag buffer layers preformed on 7×7-(111)Si substrates by molecular-beam epitaxy. The superlattices with Co layer thickness ( t) smaller than 1.5 nm exhibited perpendicular magnetic anisotropy. The dependence of the coercivity (H c) of the Pt/Co superlattices on t is presented in detail. The H c exhibited a t -5/2 dependence that was previously reported not to be demonstrated in an epitaxial Pt/Co/Pt wedge-shaped sandwich structure.