Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain

Ian Affleck; Minoru Takahashi; Sebastian Eggert

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Susceptibility of the Spin 1/2 Heisenberg Antiferromagnetic Chain

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arxiv cond-mat/9404062 v1 pith:E7X4JBBN submitted 1994-04-19 cond-mat hep-th

Sebastian Eggert , Ian Affleck , Minoru Takahashi This is my paper · ORCID

classification cond-mathep-th

keywords antiferromagneticchainheisenbergsusceptibilityaccurateansatzapproachesasympotic

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abstract

Highly accurate results are presented for the susceptibility, $\chi (T)$ of the $s=1/2$ Heisenberg antiferromagnetic chain for all temperatures, using the Bethe ansatz and field theory methods. After going through a rounded peak, $\chi (T)$ approaches its asympotic zero-temperature value with infinite slope.

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