(SrFeO3)2/(LaAlO3)1.5(001)超晶格的磁性研究

IF 3.9 Q3 PHYSICS, CONDENSED MATTER
Zubaria Maroof , Ren Ren , Shahid Hussain , Muhammad Habeeb Ul Hassan
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引用次数: 0

摘要

在这项研究中,我们研究了异质结构(SrFeO3)2/(LaAlO3)1.5的界面,以探索在该氧化物界面上电性和结构特征之间相互作用所产生的意外磁现象。利用Hubbard改正的密度泛函理论(DFT + U),我们分析了2 × 2 × 1超级单体结构的磁态、态密度(DOS)和能带结构。虽然块状SrFeO3在室温下通常表现出铁磁性,但我们的研究结果表明,在这种异质结构构型中,c型反铁磁性在能量上更有利。这种稳定性归因于界面上的电荷转移和结构扭曲。这种分层结构重塑了磁有序能,使磁态调制成为可能。这些发现为异质结构的磁性和电学性质提供了有价值的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of magnetic properties in (SrFeO3)2/(LaAlO3)1.5 (001) superlattice
In this study, we investigate the interface of the heterostructure (SrFeO3)2/(LaAlO3)1.5 to explore the emergent magnetic phenomena arising from the interplay between electrical and structural characteristics at this oxides interface. Utilizing density functional theory with Hubbard corrections (DFT + U), we analyze the magnetic states, density of states (DOS), and band structure of a 2 × 2 × 1 supercell configuration. While bulk SrFeO3 typically exhibits ferromagnetism at room temperature, our results reveal that the C-type antiferromagnetism is energetically favored within this heterostructure configuration. This stabilization is attributed to charge transfer and structural distortions at the interface. This layered configuration reshapes the magnetic ordering energy, enabling the modulation of magnetic states. These findings provide valuable insights into the magnetic and electrical properties of the heterostructure.
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来源期刊
Computational Condensed Matter
Computational Condensed Matter PHYSICS, CONDENSED MATTER-
CiteScore
3.70
自引率
9.50%
发文量
134
审稿时长
39 days
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