Fermi Surface Renormalization in Two Spatial Dimensions

Details Fermi Surface Renormalization in Two Spatial Dimensions Fermi Surface Renormalization in Two Spatial Dimensions

2002-03-19

arxiv.org/abs/cond-mat/0203376v1

Physics

Condensed Matter

Strongly Correlated Electrons

Laboratorio de Supercondutividade Centro Intl.de Fis.da Materia Condensada-UnB

Scientific paper

10.1209/epl/i2003-00223-5

We discuss the renormalization induced by interactions of a two-dimensional truncated Fermi surface (FS) model.Using a field theoretical renormalization group method we calculate the critical renormalized physical chemical potential. We show that it either vanishes or approaches a non-zero value. We argue that the vanishing of the chemical potential is indicative of a further truncation of the FS we started with and might well represent an insulating spin liquid phase.

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