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Thermal Expansion and Magnetostriction of the Ising Antiferromagnet TbNi2Ge2

G. M. Schmiedeshoff, S. M. Hollen, S. L. Bud'ko, P. C. Canfield

cond-mat.str-elarXiv:cond-mat/0610586

Abstract

We have measured the linear thermal expansion and magnetostriction of the Ising antiferromagnet TbNi2Ge2 along its c-axis from room temperature to 2 K and in magnetic fields to 14 T. We find a magnetic phase diagram that agrees with earlier work and estimate aspects of its uniaxial pressure dependence. We also find a new high field feature near 10 T which may signal the onset of an additional field-induced phase.

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