Study of coexisting phases in Bi doped La 0.67 Sr 0.33 MnO 3

Citation data:

Journal of Magnetism and Magnetic Materials, ISSN: 0304-8853, Vol: 406, Page: 22-29

Publication Year:
2016
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Repository URL:
http://hdl.handle.net/10754/592641
DOI:
10.1016/j.jmmm.2015.12.084
Author(s):
Kambhala, Nagaiah; Chen, Miaoxiang; Li, Peng; Zhang, Xixiang; Rajesh, Desapogu; Bhagyashree, K.S.; Goveas, Lora Rita; Bhat, S.V.; Kumar, P. Anil; Mathieu, Roland; Angappane, S. Show More Hide
Publisher(s):
Elsevier BV
Tags:
Materials Science; Physics and Astronomy; CMR; Manganites; Phase separation; Electron spin resonance
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article description
We report the remarkable phase separation behavior in La 0.67 Sr 0.33 MnO 3 doped with Bi 3+ ion at La site. The temperature dependent resistivity and magnetization of La 0.67−x Bi x Sr 0.33 MnO 3 ( x >0) show the presence of phase separation of ferromagnetic metallic and charge ordered antiferromagnetic insulating phases. Markedly, the field dependant magnetization studies of La 0.67−x Bi x Sr 0.33 MnO 3 ( x =0.3) show the metamagnetic nature of ferromagnetic metallic state implying the competition of coexisting ferromagnetic metallic and charge ordered antiferromagnetic phases. The electron spin resonance and exchange bias studies of La 0.67−x Bi x Sr 0.33 MnO 3 ( x =0.4 and 0.5) substantiate the coexistence of ferromagnetic clusters in antiferromagnetic matrix.