Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2004-01-15
J. Phys. IV France 114, 23 (2004)
Physics
Condensed Matter
Strongly Correlated Electrons
Proccedings of the ISCOM 2003 conference, Port-Bourgenay, Sept 2003; To be published in the Journal de Physique IV
Scientific paper
10.1051/jp4:2004114004
The Bechgaard salts are made of weakly coupled one dimensional chains. This particular structure gives the possibility to observe in these systems a dimensional crossover between a high temperature (or high energy) one dimensional phase and a two or three dimensional system. Since the filling of the chains is commensurate the system thus undergoes a deconfinement transition from a one dimensional Mott insulator to a two (or three) dimensional metal. Such a transition has of course a strong impact on the physical properties of these compounds, and is directly seen in transport measurements. In order to describe such a transition a dynamical mean field method has been introduced (chain-DMFT). Using this method we investigate a system of coupled Hubbard chains and show that we can indeed reproduce the deconfinement transition. This allows to determine physical quantities such as the transport transverse to the chains and the shape of the Fermi surface and quasiparticle residues in the low temperature phase.
Biermann Silke
Georges Antoine
Giamarchi Thierry
Lichtenstein Alexander
No associations
LandOfFree
Dimensional crossover and deconfinement in Bechgaard salts does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dimensional crossover and deconfinement in Bechgaard salts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimensional crossover and deconfinement in Bechgaard salts will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-299922