This book is devoted to one of the most exciting directions of investigation in
the condensed matter physics field-the magnetocaloric effect (MCE) and
possible applications of this phenomenon in refrigeration technology. For
a long time the effect was used as a powerful tool for investigation of
magnetic materials, especially in the area of magnetic phase transitions
accompanying various spin structure transformations and in low temperature
physics to obtain temperatures below 1 K. It is also convenient for
theoretical simulation in the framework of various models.