Transport in dimerized and frustrated spin systems

Details Transport in dimerized and frustrated spin systems Transport in dimerized and frustrated spin systems

2004-06-16

arxiv.org/abs/cond-mat/0406362v1

J. Mag. Mag. Mat. 272-276 (2004) 890-891

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 1 figure. Proceedings of the ICM 2003, Rome

Scientific paper

We analyze the Drude weight for both spin and thermal transport of
one-dimensional spin-1/2 systems by means of exact diagonalization at finite
temperatures. While the Drude weights are non-zero for finite systems, we find
indications of a vanishing of the Drude weights in the thermodynamic limit for
non-integrable models implying normal transport behavior.

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