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Issue 10, 2015
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Magnetostructural phase transformations in Tb1−xMn2

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Magnetism and phase transformations in non-stoichiometric Tb1−xMn2 (x = 0.056, 0.039) have been studied as functions of temperature and magnetic field using magnetization, heat capacity, and X-ray powder diffraction measurements. Upon lowering the temperature, the compounds sequentially order ferrimagnetically and antiferromagnetically, and finally, exhibit spin reorientation transitions. Structural distortions from room temperature cubic to low temperature rhombohedral structures occur at TN, and are accompanied by large volume changes reaching ∼−1.27% and −1.42%, respectively. First principles electronic structure calculations confirm the phase transformation from the ferrimagnetic cubic structure to the antiferromagnetic rhombohedral structure in TbMn2.

Graphical abstract: Magnetostructural phase transformations in Tb1−xMn2

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The article was received on 04 Nov 2014, accepted on 14 Jan 2015 and first published on 16 Jan 2015

Article type: Paper
DOI: 10.1039/C4TC02506G
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Citation: J. Mater. Chem. C, 2015,3, 2422-2430
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    Magnetostructural phase transformations in Tb1−xMn2

    J. Zou, D. Paudyal, J. Liu, Y. Mudryk, V. K. Pecharsky and K. A. Gschneidner, J. Mater. Chem. C, 2015, 3, 2422
    DOI: 10.1039/C4TC02506G

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