Multiple charge density wave transitions in Gd₂Te₅

2008/08/15 by Shin, K. Y., Ru, N., Condron, C. L. +4
#FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Strongly Correlated Electrons (cond-mat.str-el)

paper · doi:10.48550/arxiv.0808.2106

Abstract

Diffraction measurements performed via transmission electron microscopy and high resolution X-ray scattering reveal two distinct charge density wave transitions in Gd₂Te₅ at T_c1 = 410(3) and T_c2 = 532(3) K, associated with the on-axis incommensurate lattice modulation and off-axis commensurate lattice modulation respectively. Analysis of the temperature dependence of the order parameters indicates a non-vanishing coupling between these two distinct CDW states.

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