title: Multiple metamagnetic transitions in the magnetic refrigerant La(Fe,Si)13Hx.
abstract: The effect of hydrostatic pressure on thermally and field-induced first-order magnetic phase transitions is studied in the La(Fe,Si)_(13)-type compounds. A peculiar series of consecutive field-induced transitions is realized using a distinct combination of hydrostatic pressure and negative pressure created by the interstitial insertion of hydrogen. The pressure-induced discontinuous magnetization jumps result in an enhanced cooling power, thus opening up the possibility to exploit in full the magnetocaloric potential of this compound class.
authors.affiliation: IFW Dresden, Institute for Metallic Materials, Dresden, Germany. j.lyubina@ifw-dresden.de
authors.forename: Julia
authors.initials: J
authors.lastname: Lyubina
authors.forename: Konstantin
authors.initials: K
authors.lastname: Nenkov
authors.forename: Ludwig
authors.initials: L
authors.lastname: Schultz
authors.forename: Oliver
authors.initials: O
authors.lastname: Gutfleisch