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An Accurate Determination of the Exchange Constant in Sr_2CuO_3 from Recent Theoretical Results

Sebastian Eggert
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Abstract

Data from susceptibility measurements on Sr_2CuO_3 are compared with recent theoretical predictions for the magnetic susceptibility of the antiferromagnetic spin-1/2 Heisenberg chain. The experimental data fully confirms the theoretical predictions and in turn we establish that Sr_2CuO_3 behaves almost perfectly like a one-dimensional antiferromagnet with an exchange coupling of J = 1700^{+150}_{-100}K.

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Sebastian Eggert. 1996-02-08. An Accurate Determination of the Exchange Constant in Sr_2CuO_3 from Recent Theoretical Results. https://doi.org/10.1103/physrevb.53.5116

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