title: Understanding the inverse magnetocaloric effect in antiferro- and ferrimagnetic arrangements.
abstract: The inverse magnetocaloric effect occurs when a magnetic material cools down under applied magnetic field in an adiabatic process. Although the existence of the inverse magnetocaloric effect was recently reported experimentally, a theoretical microscopic description is almost nonexistent. In this paper we theoretically describe the inverse magnetocaloric effect in antiferro- and ferrimagnetic systems. The inverse magnetocaloric effects were systematically investigated as a function of the model parameters. The influence of the Néel and the compensation temperature on the magnetocaloric effect is also analyzed using a microscopic model.
authors.affiliation: Instituto de Física 'Armando Dias Tavares', Universidade do Estado do Rio de Janeiro-UERJ, Rua São Francisco Xavier, 524, 20550-013, RJ, Brazil.
authors.forename: P J
authors.initials: PJ
authors.lastname: von Ranke
authors.forename: N A
authors.initials: NA
authors.lastname: de Oliveira
authors.forename: B P
authors.initials: BP
authors.lastname: Alho
authors.forename: E J R
authors.initials: EJ
authors.lastname: Plaza
authors.forename: V S R
authors.initials: VS
authors.lastname: de Sousa
authors.forename: L
authors.initials: L
authors.lastname: Caron
authors.forename: M S
authors.initials: MS
authors.lastname: Reis