Temperature-dependent logarithmic corrections in the spin-1/2 Heisenberg chain

Details Temperature-dependent logarithmic corrections in the spin-1/2 Heisenberg chain Temperature-dependent logarithmic corrections in the spin-1/2 Heisenberg chain

1999-04-18

arxiv.org/abs/cond-mat/9904250v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1088/0953-8984/12/9/309

We obtain the logarithmic corrections to the dynamic response function and
NMR T_1 and T_{2G} rates in the spin-1/2 antiferromagnetic Heisenberg chain
using perturbative renormalization group in the leading irrelevant operator.
The result is compared with NMR experiments in Sr_2CuO_3.

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