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Effect of Chemical Pressure on the Charge Density Wave Transition in Rare-earth Tritellurides RTe_3

N. Ru·C. L. Condron·G. Y. Margulis·K. Y. Shin·J. Laverock·S. B. Dugdale·M. F. Toney·I. R. Fisher
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Abstract

The charge density wave transition is investigated in the bi-layer family of rare earth tritelluride RTe_3 compounds (R = Sm, Gd, Tb, Dy, Ho, Er, Tm) via high resolution x-ray diffraction and electrical resistivity. The transition temperature increases monotonically with increasing lattice parameter from 244(3) K for TmTe_3 to 416(3) K for SmTe_3. The heaviest members of the series, R = Dy, Ho, Er, Tm, are observed to have a second transition at a lower temperature, which marks the onset of an additional CDW with wavevector almost equal in magnitude to the first, but oriented in the perpendicular direction.

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N. Ru, C. L. Condron, G. Y. Margulis, K. Y. Shin, J. Laverock, S. B. Dugdale, M. F. Toney, I. R. Fisher. 2007-10-09. Effect of Chemical Pressure on the Charge Density Wave Transition in Rare-earth Tritellurides RTe_3. https://arxiv.org/abs/cond-mat/0610319

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