  In this paper, we investigated the magnetocaloric effect (MCE) in
one-dimensional magnets with different types of ordering in the Ising model,
Heisenberg, XY-model, the standard, planar, and modified Potts models. Exact
analytical solutions to MCE as functions of exchange parameters, temperature,
values and directions of an external magnetic field are obtained. The
temperature and magnetic field dependences of MCE in the presence of
frustrations in the system in a magnetic field are numerically computed in
detail.
