Magnetism and electronic properties of BiFeO3 under lower pressure

Abstract

Ab initio calculations show an antiferromagnetic-ferromagnetic phase transition around 9-10 GPa and a magnetic anomaly at 12 GPa in BiFeO3. The magnetic phase transition also involves a structural and insulator-metal transition. The G-type AFM configuration under pressure leads to an increase of the y component and decrease of the z component of the magnetization, which is caused by the splitting of the dz2 orbital from doubly degenerate eg states. Our results agree with recent experimental results.

References in corpus (4)

• Origin of magnetoelectric behavior in BiFeO${}_3$
• The role of Coulomb and exchange interaction on the Dzyaloshinskii-Moriya interaction(DMI) in BiFeO3
• Infrared and magnetic characterization of the multiferroic Bi2FeCrO6 thin films in a broad temperature range
• Coupling of magnetization and structural distortions in multiferroic BiFeO3 : an ab initio density functional theory study

Cited by in corpus (2)

• The reversal of magnetization driven by the Dzyaloshinskii-Moriya interaction(DMI) in perovskite Bi2FeMnO6
• Spin transfer in ultrathin BiFeO3 film under external electric field