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arxiv: cond-mat/0406362 · v1 · pith:JESBCINLnew · submitted 2004-06-16 · ❄️ cond-mat.str-el · cond-mat.stat-mech

Transport in dimerized and frustrated spin systems

classification ❄️ cond-mat.str-el cond-mat.stat-mech
keywords drudesystemstransportfinitespinweightsanalyzebehavior
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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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