The Evolution of Electron Dispersion in the Series of Rare-Earth Tritelluride Compounds Obtained from Their Charge-Density-Wave Properties and Susceptibility Calculations

Pavel A Vorobyev; Pavel D Grigoriev; Kaushal K Kesharpu; Vladimir V Khovaylo

doi:10.3390/ma12142264

The Evolution of Electron Dispersion in the Series of Rare-Earth Tritelluride Compounds Obtained from Their Charge-Density-Wave Properties and Susceptibility Calculations

Materials (Basel). 2019 Jul 15;12(14):2264. doi: 10.3390/ma12142264.

Authors

Pavel A Vorobyev¹, Pavel D Grigoriev^{2

3

4}, Kaushal K Kesharpu³, Vladimir V Khovaylo^{5

6}

Affiliations

¹ Department of Low Temperature Physics and Superconductivity, M.V. Lomonosov Moscow State University, Moscow 119991, Russia. pavel-vorobyev@mail.ru.
² L.D. Landau Institute for Theoretical Physics, Chernogolovka 142432, Russia.
³ Department of Theoretical Physics and Quantum Technologies, National University of Science and Technology "MISiS", Moscow 119049, Russia.
⁴ P.N. Lebedev Physical Institute of RAS, Moscow 119991, Russia.
⁵ National Research South Ural State University, Chelyabinsk 454080, Russia.
⁶ Department of Functional Nanosystems and High Temperature Materials, National University of Science and Technology "MISiS", Moscow 119049, Russia.

Abstract

We calculated the electron susceptibility of rare-earth tritelluride compounds RTe₃ as a function of temperature, wave vector, and electron-dispersion parameters. Comparison of the results obtained with the available experimental data on the transition temperature and on the wave vector of a charge-density wave in these compounds allowed us to predict the values and evolution of electron-dispersion parameters with the variation of the atomic number of rare-earth elements (R).

Keywords: Fermi surface; charge density wave; electron dispersion; rare-earth tritelluride; susceptibility; transition temperature.