（Co,Fe）/MgO薄膜异质结构自旋极化和磁性能的理论研究

IF 1.3 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-07-31 DOI:10.1134/S0021364025606505

A. O. Shorikov, N. A. Viglin

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引用次数: 0

摘要

用GGA + U法研究了(Co,Fe)/MgO薄膜异质结构的电子结构和磁性能。结果表明，Co层外延应变导致了反铁磁序，使(Co, Fe)/MgO界面的极化特性恶化。对bcc - Co晶格扩展的模拟表明，原子间距离的增加可以引起从铁磁性到反铁磁性的长程变化。

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Theoretical Study of the Spin Polarization and Magnetic Properties of (Co,Fe)/MgO Thin Film Heterostructures

The electronic structure and magnetic properties of thin-film (Co,Fe)/MgO heterostructures have been examined using the GGA + U method. It has been found that the epitaxial strain in the Co layer leads to the antiferromagnetic order, which can deteriorate the polarization characteristics of the (Co, Fe)/MgO interface. The simulation of the extension of bcc Co lattice has shown that the change in the long-range order from ferromagnetic to antiferromagnetic can be caused by an increase in the interatomic distance.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.