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Modeling and characterization of the magnetocaloric effect in Ni2MnGa materials / D. M. Nicholson in International journal of refrigeration, Vol. 37 N° 1 (Janvier 2014) 

Public ISBD [article]  in International journal of refrigeration > Vol. 37 N° 1 (Janvier 2014) . - pp. 289-296 Titre : Modeling and characterization of the magnetocaloric effect in Ni2MnGa materials Titre original : Modélisation et caractérisation de l'effet magnétocalorique dans les matériaux Ni2MnGa Type de document : texte imprimé Auteurs : D. M. Nicholson, Auteur ; Kh. Odbadrakh, Auteur ; B. A. Shassere, Auteur Année de publication : 2014 Article en page(s) : pp. 289-296 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Ni2MnGa;  magnetocaloric;  magnetic  entropy;  elastic  neutron  scattering;  first  principles Résumé : Magnetic shape memory alloys have great promise as magneto-caloric effect refrigerant materials due to their combined magnetic and structural transitions. Computational and experimental research is reported on the Ni2MnGa material system. The magnetic states of this system are explored using the Wang-Landau statistical approach in conjunction with the Locally Self-consistent Multiple-Scattering method. The effects of alloying agents on the transition temperatures of the Ni2MnGa alloy are investigated using differential scanning calorimetry and superconducting quantum interference device. Experiments are performed at the Spallation Neutron Source at Oak Ridge National Laboratory to observe the structural and magnetic phase transformations. En ligne : http://www.sciencedirect.com/science/article/pii/S014070071300279X [article] Modeling and characterization of the magnetocaloric effect in Ni2MnGa materials = Modélisation et caractérisation de l'effet magnétocalorique dans les matériaux Ni2MnGa [texte imprimé] / D. M. Nicholson, Auteur ; Kh. Odbadrakh, Auteur ; B. A. Shassere, Auteur . - 2014 . - pp. 289-296. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 37 N° 1 (Janvier 2014) . - pp. 289-296 Mots-clés : Ni2MnGa;  magnetocaloric;  magnetic  entropy;  elastic  neutron  scattering;  first  principles Résumé : Magnetic shape memory alloys have great promise as magneto-caloric effect refrigerant materials due to their combined magnetic and structural transitions. Computational and experimental research is reported on the Ni2MnGa material system. The magnetic states of this system are explored using the Wang-Landau statistical approach in conjunction with the Locally Self-consistent Multiple-Scattering method. The effects of alloying agents on the transition temperatures of the Ni2MnGa alloy are investigated using differential scanning calorimetry and superconducting quantum interference device. Experiments are performed at the Spallation Neutron Source at Oak Ridge National Laboratory to observe the structural and magnetic phase transformations. En ligne : http://www.sciencedirect.com/science/article/pii/S014070071300279X