Print Email Facebook Twitter Latent heat of the first-order magnetic transition of MnFeSio.33P0.66 Title Latent heat of the first-order magnetic transition of MnFeSio.33P0.66 Author Roy, P. (Radboud Universiteit Nijmegen) Brück, E.H. (TU Delft RST/Fundamental Aspects of Materials and Energy) de Groot, R.A. (Radboud Universiteit Nijmegen) Date 2016 Abstract The latent heat of a magnetoelastic phase transition is used as a measure of the magnetocaloric effect since it is directly proportional to the entropy change. Taking MnFeSi0.33P0.66 as a model magnetocaloric material, density functional theory calculations in addition to the phonon calculations based on the density functional perturbation theory were performed in order to calculate the latent heat of the magnetoelastic phase transition. The Curie temperature (TC) was determined by taking into account the quasiharmonic approximation and the configurational entropy. The material exhibits a first-order magnetic transition accompanied by a large latent-heat (19.97 kJ/kg) near-room-temperature operation. To reference this document use: http://resolver.tudelft.nl/uuid:140e7566-4a8c-4620-88d3-6997fb10949a DOI https://doi.org/10.1103/PhysRevB.93.165101 ISSN 1098-0121 Source Physical Review B (Condensed Matter and Materials Physics), 93 (16) Part of collection Institutional Repository Document type journal article Rights © 2016 P. Roy, E.H. Brück, R.A. de Groot Files PDF PhysRevB.93.165101.pdf 1.37 MB Close viewer /islandora/object/uuid:140e7566-4a8c-4620-88d3-6997fb10949a/datastream/OBJ/view