Symmetry-breaking Fermi surface deformations from central interactions in two dimensions

被引：26
|
作者：
Quintanilla, Jorge [1 ]
Haque, Masudul [2 ]
Schofield, A. J. [3 ]
机构：
[1] Rutherford Appleton Lab, STFC, ISIS Spallat Facil, Didcot OX11 0QX, Oxon, England
[2] Max Planck Inst Phys Komplexer Syst, Dresden, Germany
[3] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
来源：
PHYSICAL REVIEW B | 2008年 / 78卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.78.035131
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a mean-field theory of the Pomeranchuk instability in two dimensions, starting from a generic central interaction potential described in terms of a few microscopic parameters. For a significant range of parameters, the instability is found to be pre-empted by a first-order quantum phase transition. We provide the ground-state phase diagram in terms of our generic parameters.
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收藏
页数：8
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