Fermi surface reconstruction in strongly correlated Fermi systems as a first-order phase transition

被引：0
作者：
S. S. Pankratov
M. V. Zverev
M. Baldo
机构：
[1] National Research Centre Kurchatov Institute,Istituto Nazionale di Fisica Nucleare
[2] Moscow Institute of Physics and Technology,undefined
[3] Sezione di Catania,undefined
来源：
JETP Letters | 2011年 / 93卷
关键词：
Fermi Surface; JETP Letter; Order Phase Transition; Quantum Phase Transition; Fermi Liquid;
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学科分类号：
摘要：
A quantum phase transition in strongly correlated Fermi systems beyond the topological quantum critical point has been studied using the Fermi liquid approach. The transition takes place between topologically equivalent states with three Fermi surface sheets, but one of them is characterized by a quasiparticle halo in the quasiparticle momentum distribution n(p), and the other one is characterized by a hole pocket. It has been found that the transition between these states is a first-order phase transition for the interaction constant g and temperature T. The phase diagram in the vicinity of this transition has been constructed.
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页码：591 / 597
页数：6
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