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Paper detail

Magnetocaloric effect in the spin-$1/2$ chain with competing interactions

We study the magnetocaloric effect for the integrable antiferromagnetic Heisenberg spin chain with competing interactions. We computed the Grüneisen parameter, which is closely related to the magnetocaloric effect, for the quantum spin chain in the thermodynamical limit. This is obtained by means of the solution of a set of non-linear integral equations, which describes the thermodynamics of the model. We also provide results for the entropy $S$ and the isentropes in the $(H,T)$ plane.

preprint2014arXivOpen access
T. S. TavaresG. A. P. Ribeiro
cond-mat.stat-mechcond-mat.str-el
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T. S. TavaresG. A. P. Ribeiro

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