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Elsevier, Journal of Magnetism and Magnetic Materials, (406), p. 22-29, 2016

DOI: 10.1016/j.jmmm.2015.12.084

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Study of coexisting phases in Bi doped La0.67Sr0.33MnO3

Journal article published in 2016 by Nagaiah Kambhala, Miaoxiang Chen, Peng Li, Xi-Xiang Zhang, Desapogu Rajesh, K. S. Bhagyashree, Lora Rita Goveas, S. V. Bhat, P. Anil Kumar, Roland Mathieu ORCID, P. Anil Kumar, S. Angappane
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This paper is available in a repository.

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Abstract

We report the remarkable phase separation behaviour in La0.67Sr0.33MnO3 doped with Bi3+ ion at La site. The temperature dependent resistivity and magnetization of La0.67-xBixSr0.33MnO3 (x>0) show the presence of phase separation of ferromagnetic metallic and charge ordered antiferromagnetic insulating phases. Markedly, the field dependant magnetization studies of La0.67-xBixSr0.33MnO3 (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 La0.67-xBixSr0.33MnO3 (x=0.4 and 0.5) substantiate the coexistence of ferromagnetic clusters in antiferromagnetic matrix.