58391 20170725081821.0 doi 10.1051/epjconf/20147504003 sideral 87848 ART-2014-87848 eng Wang, G. Comparative analysis of magnetic and caloric determinations of the magnetocaloric effect in Mn0.99Co0.01As 2014 Access copy available to the general public Unrestricted The results from direct and indirect determinations of the magnetocaloric parameters of Mn0.99Co0.01As have been analyzed. The isothermal entropy change (Delta ST) due to external magnetic field changes has been determined through direct measurements of the heat absorbed by the sample when the field is removed under isothermal conditions. It has also been calculated from isothermal magnetization and isofield heat capacity measurements. In addition to that, the adiabatic temperature change (Delta TS) has been obtained from direct measurements and from isofield heat capacity measurements. The different results of both Delta ST and Delta TS are compared. Due to the presence of a first-order phase transition, the studied sample exhibits giant magnetocaloric effect at room temperature. The observed maximum values, -Delta ST,max = 32.1 J/kg·K and Delta TS,max = 17.7 K for a field change from 0 to 6 T, suggest that the Co-doped MnAs compounds are promising candidates for the preparation of useful materials for magnetic refrigeration near room temperature. info:eu-repo/grantAgreement/ES/MICINN/CSD2007-00010 info:eu-repo/grantAgreement/ES/MICINN/MAT2007-61621 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-3567-7030 Palacios, E. Universidad de Zaragoza Aguiar Coelho, A. Gama, S. (orcid)0000-0003-2962-9251 Burriel, R. Universidad de Zaragoza 2003 395 Universidad de Zaragoza Departamento de Física de la Materia Condensada Física de la Materia Condensada 75 (2014), 04003 [4 pp] EPJ web conf. EPJ web of conferences 2101-6275 253161 http://zaguan.unizar.es/record/58391/files/texto_completo.pdf Versión publicada 122199 http://zaguan.unizar.es/record/58391/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:58391 articulos driver 2017-07-25-08:17:18 ARTICLE