η-Exponents in the one dimensional antiferromagnetic Heisenberg model with next to nearest neighbour coupling

Abstract

We investigate the critical exponents ${\eta }_3(\alpha ,M),{\eta }_1(\alpha ,M)$ associated with the singularities in the longitudinal and transverse structure factors of the one dimensional antiferromagnetic Heisenberg model with nearest (J_1) and next to nearest (J_2) neighbour coupling of relative strength $\alpha =J_2/J_1$ and an external field $B$ with magnetization $M(B)$.

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Cited by in corpus (4)

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