Modifications in the electronic structure of Rare-Earth doped BiFeO3 multiferroic

Title
Modifications in the electronic structure of Rare-Earth doped BiFeO3 multiferroic
Authors
Priyanka TrivediSavan KatbaSadaf JethvaMalay UdeshiBrinda VyasMegha VagadiaS. Gautam채근화K. AsokanD. G. Kuberkar
Keywords
Rare Earth; Electronic tructure; Hybridization; XAS
Issue Date
2015-11
Publisher
Solid state communications
Citation
VOL 222, 5-8
Abstract
We report the modifications in the electronic structure of Rare Earth(RE) doped polycrystalline BiFeO3 (Bi0.9RE0.1FeO3 (RE¼ La, Pr,andEr)) synthesized using conventional solid state reaction method.Struc-tural studies using XRD shows that all the samples possess rhombohedral symmetry.AscomparedtoErand Pr-doped BiFeO3, La-doping results in the improvement inP–E behavior. X-ray absorption studies at Fe L-edge shows the presence of mixed valence state of Feionsinall the samples. Interestingly, OK-edge spectra of La-doped BiFeO3 shows enhancement in the intensity of the feature ‘b’ assigned to the hybridization of Bi6s and O2p orbital.
URI
http://pubs.kist.re.kr/handle/201004/50480
ISSN
00381098
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KIST Publication > Article
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