Magnetic anisotropy of ultrathin Pd4Co(111) film by first-principles calculations

被引：2

作者：

Do Ngoc Son ^{[1
]}

Ong Kim Le ^{[1
]}

Mai Thanh Hiep ^{[1
]}

Chihaia, Viorel ^{[2
]}

机构：

[1] VNU HCM, Univ Technol, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam

[2] Romanian Acad, Inst Phys Chem Ilie Murgulescu, Splaiul Independentei 202,Sect 6, Bucharest 060021, Romania

来源：

JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES | 2018年 / 3卷 / 02期

关键词：

Magnetic recording; Magnetic anisotropy; Density functional theory; Electronic structure properties; Ultrathin film; GENERALIZED GRADIENT APPROXIMATION; BRILLOUIN-ZONE INTEGRATIONS; INITIO MOLECULAR-DYNAMICS; CO/PD MULTILAYER FILMS; AUGMENTED-WAVE METHOD; METALLIC MULTILAYERS; PD/FE MULTILAYERS; ALLOY-FILMS; CO-PD; PD/CO;

D O I：

10.1016/j.jsamd.2018.03.004

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Pd-Co alloy is a suitable candidate for the perpendicular magnetic recording and related applications. However, no research is available to clarify influences of local structures on the magnetic anisotropy of the Pd-Co alloy. Therefore, in this work, we studied the effects of Co arrangement on the magnetic anisotropy of ultrathin Pd4Co(111) film with 20% Co content by using the density functional theory calculations. We found that a Co monolayer in the surface layer of the ultrathin film offers a large in-plane magnetic anisotropy while the Co atoms mixed inside the Pd matrix exhibit the perpendicular magnetic anisotropy. Notably, a Co monolayer beneath the surface layer of the Pd matrix maximizes the perpendicular magnetic anisotropy up to 1.85 erg/cm(2). Electronic properties were also analyzed to clarify the magnetic anisotropy of the ultrathin film. (C) 2018 Vietnam National University in Ho Chi Minh City. Publishing services by Elsevier B.V.

引用

页码：243 / 253

页数：11

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