Evolution of structural phase coexistence in a half doped manganite Pr0.5Sr0.5MnO3: An evidence for magneto-structural coupling
Data(s) |
2012
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Resumo |
Temperature dependent x-ray diffraction measurements have been performed to understand the implications of magnetic phase coexistence on crystallographic structure in a half-doped manganite Pr0.5Sr0.5MnO3. The compound shows a structural phase transition from high-temperature tetragonal-I4/mcm to low-temperature orthorhombic-Fmmm symmetry around the ferromagnetic to antiferro-magnetic transition. Rietveld analysis shows the coexistence of these two structures emerges at high temperature within the ferromagnetic state, and persists down to lowest temperature. Below around 40 K, however, this structural evolution stops, and a significant fraction (similar to 22%) of untransformed high-temperature phase remains. This agrees with earlier magnetization study, thus establishing its magneto-structural coupling. (C) 2012 Elsevier B.V. All rights reserved. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/45451/1/jol_mag_magt_mat_325_29_2012.pdf Pramanik, AK and Ranjan, Rajeev and Banerjee, A (2012) Evolution of structural phase coexistence in a half doped manganite Pr0.5Sr0.5MnO3: An evidence for magneto-structural coupling. In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 325 . pp. 29-35. |
Publicador |
Elsevier Science |
Relação |
http://dx.doi.org/10.1016/j.jmmm.2012.08.006 http://eprints.iisc.ernet.in/45451/ |
Palavras-Chave | #Materials Engineering (formerly Metallurgy) #Physics |
Tipo |
Journal Article PeerReviewed |