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

TL;DR

This paper confirms that Sr_2CuO_3 behaves as a near-ideal one-dimensional antiferromagnet with a precisely determined exchange constant of approximately 1700K, based on comparison of experimental susceptibility data with recent theoretical models.

Contribution

The study provides an accurate experimental determination of the exchange constant in Sr_2CuO_3, validating recent theoretical predictions for its magnetic susceptibility.

Findings

Experimental data confirms theoretical susceptibility models

Exchange constant J estimated at 1700^{+150}_{-100}K

Sr_2CuO_3 behaves as a nearly perfect 1D antiferromagnet

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.