Magnetocaloric effect in spin-1/2 $XX$ chains with three-spin interactions

Abstract

We consider the exactly solvable spin-1/2 $XX$ chain with the three-spin interactions of the $XZX+YZY$ and $XZY-YZX$ types in an external (transverse) magnetic field. We calculate the entropy and examine the magnetocaloric effect for the quantum spin system. We discuss a relation between the cooling/heating efficiency and the ground-state phase diagram of the quantum spin model. We also compare ability to cool/heat in the vicinity of the quantum critical and triple points. Moreover, we examine the magnetocaloric effect for the spin-1/2 $XX$ chain with three-spin interactions in a random (Lorentzian) transverse magnetic field.

10 pages, 8 figures

References in corpus (10)

• Magnetocaloric effect in one-dimensional antiferromagnets
• Exact eigenstates and macroscopic magnetization jumps in strongly frustrated spin lattices
• Universal low-temperature behavior of frustrated quantum antiferromagnets in the vicinity of the saturation field
• Enhanced magnetocaloric effect in frustrated magnetic molecules with icosahedral symmetry
• Geometric frustration in the class of exactly solvable Ising-Heisenberg diamond chains
• Magnetocaloric effect in the frustrated square lattice J1-J2 model
• Universal properties of highly frustrated quantum magnets in strong magnetic fields
• Dynamic properties of the spin-1/2 XY chain with three-site interactions
• Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets
• Exact solution of a spin-1/2 $XX$ chain with three-site interactions in a random transverse field: Influence of randomness on quantum phase transition

Cited by in corpus (1)

• Exact description of the magnetoelectric effect in the spin-1/2 XXZ-chain with Dzyaloshinskii-Moriya interaction