Strain-promoted perpendicular magnetic anisotropy in Co-Rh alloys

被引：6
作者：
Aksu, P. [1 ]
Deger, C. [2 ]
Yavuz, I [2 ]
Yildiz, F. [3 ]
机构：
[1] Gebze Tech Univ, Inst Nanotechnol, TR-41400 Kocaeli, Turkey
[2] Marmara Univ, Phys Dept, TR-34722 Istanbul, Turkey
[3] Gebze Tech Univ, Phys Dept, TR-41400 Kocaeli, Turkey
来源：
APPLIED PHYSICS LETTERS | 2020年 / 116卷 / 21期
关键词：
ROOM-TEMPERATURE; THIN-FILMS; BEHAVIOR; PD/CO;
D O I：
10.1063/5.0010606
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on a comprehensive experimental, numerical, and computational investigation on the concentration dependence of the structural/magnetic properties of Co-Rh alloy films. A sizable perpendicular magnetic anisotropy is achieved by controlling the lattice strain via the Co content. Within the 30-40% range of Co concentrations, an experimental effective magnetic anisotropy on the order of 100kJ/m(3) and a computational uniaxial magnetic anisotropy energy of 567 mu eV/atom have been observed. First-principles calculations revealed that the lattice strain promotes a strong d-orbital degeneracy near the Fermi level for 40% of Co concentration, leading to an enhanced magnetic anisotropy energy.
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页数：5
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