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

Abstract

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.

11 pages, 3 figures

References in corpus (6)

• Magnetocaloric effect in one-dimensional antiferromagnets
• Bridging frustrated-spin-chain and spin-ladder physics: quasi-one-dimensional magnetism of BiCu2PO6
• Exact description of the magnetoelectric effect in the spin-1/2 XXZ-chain with Dzyaloshinskii-Moriya interaction
• Magnetocaloric effect in spin-1/2 $XX$ chains with three-spin interactions
• Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions
• Thermodynamic Bethe Ansatz for the Spin-1/2 Staggered XXZ- Model