Sil, Anomitra ; Negi, Devendra S. ; Naik, Mit H. ; Jain, Manish ; Datta, Ranjan ; Ranjan, Rajeev ; Anil Kumar, P. S. (2019) Large intrinsic magnetization in an epitaxial BiFeO3/NdGaO3 system EPL (Europhysics Letters), 126 (5). p. 57003. ISSN 1286-4854
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Official URL: http://doi.org/10.1209/0295-5075/126/57003
Related URL: http://dx.doi.org/10.1209/0295-5075/126/57003
Abstract
We report a comparative study of the crystal structure and magnetic properties between (001) oriented epitaxial BiFeO3 films grown on NdGaO3 and SrTiO3 substrates without any magnetic parasitic phase. The 15 nm BiFeO3 film deposited on a NdGaO3 substrate shows substantially high magnetization (∼250emu/cc) as compared to an identically thick BiFeO3 film (∼100emu/cc) deposited on a SrTiO3 substrate. Detailed structural analysis revealed that the high magnetization is associated with a monoclinic (Cm) like distortion of the BiFeO3 crystal structure. We corroborated our experimental findings with first principles density functional theory calculations which suggested a saturation magnetization (266 emu/cc) close to the experimentally obtained one and a ferromagnetic ground state with the high spin moment in the Cm phase.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to IOP Publishing. |
| ID Code: | 122679 |
| Deposited On: | 06 Aug 2021 10:24 |
| Last Modified: | 31 Aug 2021 06:00 |
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