Revista: | Materials research |
Base de datos: | PERIÓDICA |
Número de sistema: | 000312886 |
ISSN: | 1516-1439 |
Autores: | Nascimento, Fabiana Cristina1 Santos, Adenilson Oliveira dos Campos, Ariana de Cardoso, Lisandro Pavie |
Instituciones: | 1Universidade Estadual de Campinas, Instituto de Fisica "Gleb Wataghin", Campinas, Sao Paulo. Brasil |
Año: | 2006 |
Periodo: | Ene-Mar |
Volumen: | 9 |
Número: | 1 |
Paginación: | 111-114 |
País: | Brasil |
Idioma: | Inglés |
Tipo de documento: | Nota breve o noticia |
Enfoque: | Experimental |
Resumen en inglés | The temperature induced phase transition in MnAs is analyzed in this work using X ray Rietveld refinement. The results show the presence of the hexagonal phase (P6(3)/mmc) at room temperature and the first-order structural-magnetic transition to the orthorhombic phase (Pnma) around 318 K was followed in detail. The MnAs magnetic characterization allowed to obtain the transition temperature and a maximum value of 47 J/(kg.K) for the measured magnetocaloric effect for a magnetic field variation of 5 T |
Disciplinas: | Ingeniería, Física y astronomía |
Palabras clave: | Ingeniería de materiales, Física de materia condensada, Aleaciones, Compuestos intermetálicos, Propiedades magnéticas, Cambio de fase, Temperatura |
Keyword: | Engineering, Physics and astronomy, Materials engineering, Condensed matter physics, Alloys, Intermetallic compounds, Magnetic properties, Phase change, Temperature |
Texto completo: | Texto completo (Ver HTML) |