各向异性
凝聚态物理
材料科学
磁各向异性
理论(学习稳定性)
工程物理
物理
磁场
计算机科学
光学
量子力学
磁化
机器学习
作者
Xiaoche Wang,Kesong Yang
标识
DOI:10.1088/1361-6463/ad36cf
摘要
Abstract Mn 3 Ga-based ferrimagnets have emerged as a promising platform for energy-efficient spintronics. However, the challenge of identifying an appropriate substrate with minimal lattice misfit for the growth of high-quality Mn 3 Ga films while achieving the desired interfacial magnetic properties persists. Here we investigate the interfacial energetic stability and magnetic anisotropy at the Mn 3 Ga/GaAs interface through first-principles electronic structure calculations. Four types of interface models based on different configurations, including MnMn/As, MnMn/Ga, MnGa/As, and MnGa/Ga, are systematically examined. Our findings reveal that the MnGa/Ga interface exhibits the largest perpendicular magnetic anisotropy (PMA) but is energetically the least favorable. Conversely, the MnMn/As interface is energetically the most favorable but demonstrates a lower interfacial PMA. Our calculations align well with the experimentally observed formation of the secondary phase Mn 2 As. This study deepens our understanding of the interfacial properties in Mn 3 Ga/GaAs and offers some insights for their optimization through strategic interfacial engineering.
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