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Taming the First‐Order Transition in Giant Magnetocaloric Materials
Author(s) -
Guillou François,
Porcari Giacomo,
Yibole Hargen,
van Dijk Niels,
Brück Ekkes
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201304788
Subject(s) - magnetic refrigeration , materials science , curie temperature , thermodynamics , condensed matter physics , thermal hysteresis , hysteresis , specific heat , thermal stability , entropy (arrow of time) , magnetic field , phase transition , magnetization , ferromagnetism , chemical engineering , physics , quantum mechanics , engineering
Large magnetically driven temperature changes are observed in MnFe(P,Si,B) materials simultaneously with large entropy changes, limited (thermal or magnetic) hysteresis, and good mechanical stability. The partial substitution of B for P in MnFe(P,Si) compounds is found to be an ideal parameter to control the latent heat observed at the Curie point without deteriorating the magnetic properties, which results in promising magnetocaloric properties suitable for magnetic refrigeration.