Volume 61, Number 2, January 2003
|Page(s)||228 - 234|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||01 January 2003|
Fermi surface renormalization in two spatial dimensions
Laboratorio de Supercondutividade, Centro Internacional de Física da Materia Condensada, Universidade de Brasilia - Brasilia, Brasil
Accepted: 4 November 2002
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 which may take different values along the Fermi surface. We show that FS is strongly renormalized by interactions in two dimensions. As a result of that, FS can be further truncated in those -space regions where non-trivial fixed points produce a smooth momentum distribution function in the vicinity of the Fermi surface.
PACS: 71.10.Pm – Fermions in reduced dimensions (anyons, composite fermions, Luttinger liquid, etc.) / 71.10.Hf – Non-Fermi-liquid ground states, electron phase diagrams and phase transitions in model systems / 74.20.Mn – Nonconventional mechanisms (spin fluctuations, polarons and bipolarons, resonating valence bond model, anyon mechanism, marginal Fermi liquid, Luttinger liquid, etc.)
© EDP Sciences, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.