Inverse magnetocaloric effect in the spin-1/2 Fisher's super-exchange antiferromagnet

Abstract

The isothermal entropy change and the adiabatic temperature change for the exactly solved spin-1/2 Fisher's super-exchange antiferromagnet are rigorously calculated in order to examine magnetocaloric properties of the model in a vicinity of the second-order phase transition. It is shown that the large inverse magnetocaloric effect occurs around the temperature interval $T_c(h\ne 0)<T<T_c(h=0)$ for any magnetic-field change $\Delta h:0\to h$. The most pronounced inverse magnetocaloric effect can be found for the magnetic-field change, which coincides with the critical field of a zero-temperature phase transition from the antiferromagnetically ordered ground state to the paramagnetic one.

3 pages, 2 figures, presented at 16th Czech and Slovak Conference on Magnetism (CSMAG'16) in Kosice, Slovakia

References in corpus (1)

• Magnetic Gruneisen parameter and magnetocaloric properties of a coupled spin-electron double-tetrahedral chain

Cited by in corpus (1)

• Magnetic and magnetocaloric properties of the exactly solvable mixed-spin Ising model on a decorated triangular lattice in a magnetic field