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The Hall number across a van Hove singularity

Authors :
Maharaj, Akash V.
Esterlis, Ilya
Zhang, Yi
Ramshaw, B. J.
Kivelson, S. A.
Source :
Phys. Rev. B 96, 045132 (2017)
Publication Year :
2016

Abstract

In the context of the relaxation time approximation to Boltzmann transport theory, we examine the behavior of the Hall number, $n_H$, of a metal in the neighborhood of a Lifshitz transition from a closed Fermi surface to open sheets. We find a universal non-analytic dependence of $n_H$ on the electron density in the high field limit, but a non-singular dependence at low fields. The existence of an assumed nematic transition produces a doping dependent $n_H$ similar to that observed in recent experiments in the high temperature superconductor YBa$_2$Cu$_3$O$_{7-x}$.<br />Comment: References added, text modified to include extended discussion of the modified Figure 4. 5 pages, 4 figures, with 13 pages of Supplemental Material

Details

Database :
arXiv
Journal :
Phys. Rev. B 96, 045132 (2017)
Publication Type :
Report
Accession number :
edsarx.1611.03875
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevB.96.045132