中国物理B ›› 2021, Vol. 30 ›› Issue (11): 117107-117107.doi: 10.1088/1674-1056/abfa06

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First-principles study of electronic structure and magnetic properties of Sr3Fe2O5 oxide

Mavlanjan Rahman(买吾兰江·热合曼) and Jiuyang He(何久洋)   

  1. School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China
  • 收稿日期:2021-02-12 修回日期:2021-04-16 接受日期:2021-04-21 出版日期:2021-10-13 发布日期:2021-11-06
  • 通讯作者: Mavlanjan Rahman E-mail:mavlanr@sina.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11964039) and Xinjiang “Hundred Young Doctors Introduction Program” Project, China (Grant No. 3010010111).

First-principles study of electronic structure and magnetic properties of Sr3Fe2O5 oxide

Mavlanjan Rahman(买吾兰江·热合曼) and Jiuyang He(何久洋)   

  1. School of Physics and Electronic Engineering, Xinjiang Normal University, Urumqi 830054, China
  • Received:2021-02-12 Revised:2021-04-16 Accepted:2021-04-21 Online:2021-10-13 Published:2021-11-06
  • Contact: Mavlanjan Rahman E-mail:mavlanr@sina.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11964039) and Xinjiang “Hundred Young Doctors Introduction Program” Project, China (Grant No. 3010010111).

摘要: We investigate the electronic structure and magnetic properties of layered compound Sr3Fe2O5 based on first-principles calculations in the framework of density functional theory with GGA+U method. Under high pressure, the ladder-type layered structure of Sr3Fe2O5 is transformed into the infinite layered structure accompanied by a transition from G-type anti-ferromagnetic (AFM) insulator to ferromagnetic (FM) metal and a spin transition from S=2 to S=1. We reproduce these transformations in our calculations and give a clear physical interpretation.

关键词: Sr3Fe2O5, first-principles calculation, electronic structure, magnetism

Abstract: We investigate the electronic structure and magnetic properties of layered compound Sr3Fe2O5 based on first-principles calculations in the framework of density functional theory with GGA+U method. Under high pressure, the ladder-type layered structure of Sr3Fe2O5 is transformed into the infinite layered structure accompanied by a transition from G-type anti-ferromagnetic (AFM) insulator to ferromagnetic (FM) metal and a spin transition from S=2 to S=1. We reproduce these transformations in our calculations and give a clear physical interpretation.

Key words: Sr3Fe2O5, first-principles calculation, electronic structure, magnetism

中图分类号:  (Electron density of states and band structure of crystalline solids)

  • 71.20.-b
31.15.es (Applications of density-functional theory (e.g., to electronic structure and stability; defect formation; dielectric properties, susceptibilities; viscoelastic coefficients; Rydberg transition frequencies)) 91.60.Pn (Magnetic and electrical properties)