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Title: Effect of paramagnetic fluctuations on a Fermi-surface topological transition in two dimensions
Authors: Slizovskiy, Sergey
Betouras, Joseph J.
Carr, Sam T.
Quintanilla, Jorge
Issue Date: 2014
Publisher: © American Physical Society
Citation: SLIZOVSKIY, S. et al., 2014. Effect of paramagnetic fluctuations on a Fermi-surface topological transition in two dimensions. Physical Review B, 90, 165110
Abstract: We study the Fermi-surface topological transition of the pocket-opening type in a two-dimensional Fermi liquid. We find that the paramagnetic fluctuations in an interacting Fermi liquid typically drive the transition first order at zero temperature. We first gain insight from a calculation using second-order perturbation theory in the self-energy. This is valid for weak interaction and far from instabilities. We then extend the results to stronger interaction, using the self-consistent fluctuation approximation. Experimental signatures are given in light of our results.
Description: This article has been published in the journal, Physical Review B [© American Physical Society]. The definitive version is available at: http://dx.doi.org/10.1103/PhysRevB.90.165110
Sponsor: This work was supported by the EPSRC through the Grants No. EP/H049797/1 and No. EP/l02669X/1.
Version: Accepted for publication
DOI: 10.1103/PhysRevB.90.165110
URI: https://dspace.lboro.ac.uk/2134/18327
Publisher Link: http://dx.doi.org/10.1103/PhysRevB.90.165110
ISSN: 1098-0121
Appears in Collections:Published Articles (Physics)

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