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Microstructure and Magnetic Properties of Y2/3Cu3Ti4O12 ceramic

Abstract

Y2/3Cu3Ti4O12 (YCTO) ceramic was prepared by the semi-wet route. Rietveld refinement of XRD peaks suggested a pseudo-cubic symmetry with lattice parameter = 7.3775 Å and space group (No. 204). The opted process of synthesis allowed Y3+ and Cu2+ ions to be seated at the respective theoretical sites within the acceptable occupancy range. Y3+ ions occupy the face and edge centred position and Cu2+ ions occupy the corner and body centred position in the cube. It is quite different as reported for CaCu3Ti4O12 in which Ca2+ ions occupy the corner and body centred position and Cu2+ ions occupy the face and edge centred position in the cube. AFM studies revealed a Platykurotic type of distribution of round shaped grains of average size 59 nm. The Root-mean-square and average roughness of its homogeneous thin film were estimated to be 2.288 and 1.854 nm. The magnetic studies established that YCTO ceramic remains in paramagnetic phase at 300 K, although it undergoes antiferromagnetic to paramagnetic transition around its Neel temperature, TN = 24.34 K.

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Publication details

The article was received on 13 Jun 2017, accepted on 02 Aug 2017 and first published on 08 Aug 2017


Article type: Paper
DOI: 10.1039/C7NJ02122D
Citation: New J. Chem., 2017, Accepted Manuscript
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    Microstructure and Magnetic Properties of Y2/3Cu3Ti4O12 ceramic

    S. Sharma, M. M. Singh and K. D. Mandal, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ02122D

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