Comment on "Anomalous Thermal Conductivity of Frustrated Heisenberg Spin Chains and Ladders"

Details Comment on "Anomalous Thermal Conductivity of Frustrated Heisenberg Spin Chains and Ladders" Comment on "Anomalous Thermal Conductivity of Frustrated Heisenberg Spin Chains and Ladders"

2003-02-18

arxiv.org/abs/cond-mat/0302358v2

Phys. Rev. Lett. 92, 069703 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

One page REVTeX4, 1 figure. Published version (minor changes)

Scientific paper

10.1103/PhysRevLett.92.069703

In a recent letter [Phys. Rev. Lett. 89, 156603 (2002); cond-mat/0201300], Alvarez and Gros have numerically analyzed the Drude weight for thermal transport in spin ladders and frustrated chains of up to 14 sites and have proposed that it remains finite in the thermodynamic limit. In this comment, we argue that this conclusion cannot be sustained if the finite-size analysis is taken to larger system sizes.

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