Layer-dependent electronic and magnetic properties of SrMnO3/ LaAlO3 superlattices

被引:0
|
作者
Maroof, Zubaria [1 ]
Ren, Ren [1 ]
Hussain, Shahid [2 ]
机构
[1] Xi An Jiao Tong Univ, Sch Phys, Xian 710049, Peoples R China
[2] Shenzhen Univ, Inst Adv Study, Shenzhen 518060, Peoples R China
基金
中国国家自然科学基金;
关键词
Density functional theory; Strongly correlated electron system; Spintronics; Perovskite interfaces; Condensed matter physics;
D O I
10.1016/j.jmmm.2024.172695
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, we investigated the structural, electronic, and magnetic properties of SrMnO3/LaAlO3 (SMO/LAO) (001) heterostructures using density functional theory (DFT) with the Hubbard U correction, employing the Perdew-Burke-Ernzerhof (PBE) generalized gradient approximation within the Vienna Ab Initio Simulation Package (VASP). Three distinct superlattices-SMO1.5/LAO1.5, SMO1.5/LAO2, and SMO2.5/LAO1-were analyzed by varying the layer thicknesses to tailor their properties. The SMO1.5/LAO1.5 and SMO2.5/LAO1 superlattices exhibit antiferromagnetic (AFM) ground states, while the SMO1.5/LAO2 superlattice shows a ferromagnetic (FM) ground state. Electronic structure analysis reveals that SMO1.5/LAO1.5 and SMO1.5/LAO2 are metallic, whereas SMO2.5/LAO1 exhibits half-metallic behavior. By strategically controlling the layers in SMO/LAO heterostructures, it is promising to engineer electronic and magnetic properties that are important for developing advanced magnetic and nano-electronic devices.
引用
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页数:6
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