Magnetic and structural properties of Pd–Mn–Sn intermetallics compounds

Autor:	E. M. Kakuno, E. J. Kinast, I. Mazzaro, F. S. da Rocha, G.L.F. Fraga
Rok vydání:	2011
Předmět:	Magnetization Lattice constant Materials science Condensed matter physics Ferromagnetism Solid-state physics Phase (matter) Martensite Analytical chemistry Intermetallic Crystal structure Condensed Matter Physics Electronic Optical and Magnetic Materials
Zdroj:	The European Physical Journal B. 83:167-172
ISSN:	1434-6036 1434-6028
DOI:	10.1140/epjb/e2011-90684-x
Popis:	Magnetic and structural properties of Heusler Pd0.5Mn0.5- x Sn x with x = 0.05, 0.10, 0.17, 0.20 and 0.25, have been studied by magnetisation and X-ray diffraction measurements at room and low temperatures. The crystal structure at room temperature is L21 cubic phase for x = 0.17, 0.20, 0.25 and B2 cubic phase for x = 0.10. Martensite structure 10M, was observed at room temperature for x = 0.05. X-ray measurements at low temperatures revealed a structural transformation from B2 to 14M for the x = 0.10 case. The lattice parameter of the L21 phase decreases linearly with the concentration, x. A ferromagnetic behaviour has been detected for L21 compounds, but the ferromagnetic exchange characteristic of each composition is of different strength. This gives rise to different Curie temperatures.
Databáze:	OpenAIRE
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