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Fermi surface nesting and charge-density wave formation in rare-earth tritellurides

J. Laverock·S. B. Dugdale·Zs. Major·M. A. Alam·N. Ru·I. R. Fisher·G. Santi·E. Bruno
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Abstract

The Fermi surface of rare-earth tri-tellurides ({\it R}Te$_{3}$) is investigated in terms of the nesting driven charge-density wave formation using positron annihilation and first-principles LMTO calculations. Fermi surface nesting is revealed as a strong candidate for driving charge-density wave formation in these compounds. The nesting vector obtained from positron annihilation experiments on GdTe$_{3}$ is determined to be ${\mathbf q} = (0.28\pm0.02,0,0) {\mathbf a}^{*}$, (${\mathbf a}^{*}=2π/{\mathbf a}$), in excellent agreement with previous experimental and theoretical studies.

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J. Laverock, S. B. Dugdale, Zs. Major, M. A. Alam, N. Ru, I. R. Fisher, G. Santi, E. Bruno. 2005-01-05. Fermi surface nesting and charge-density wave formation in rare-earth tritellurides. https://doi.org/10.1103/physrevb.71.085114

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