Interplay between electron band-anticrossing and charge-density-wave instabilities

Abstract

Our measurements of the Hall coefficient in rare-earth tritelluride compounds reveal a strong hysteresis between cooling and warming in the low temperature range where a second unidirectional charge density wave (CDW) occurs. We show that this effect results from the interplay between two instabilities: band crossing of the Te $p_x$ and $p_y$ orbitals at the Fermi level and CDW, which have a close energy gain and compete. Calculation of the electron susceptibility at the CDW wave vector with and without band anticrossing reconstruction of the electron spectrum yields a satisfactory estimation of the temperature range of the hysteresis in Hall effect measurements.

arXiv comment10 pages, 5 pages main text + 5 pages supplemental materials, 7 figures

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Cited by in corpus (3)

• Angle-resolved photoemission spectroscopy study of the charge density wave order in layered semiconductor EuTe4
• Umklapp-driven first-order transition into a charge-density wave phase
• Slow Oscillations of the Transverse Magnetoresistance in HoTe3