Magnetic Phase Diagrams of Tm2Fe19-xMnx and Tm2Fe17+δ Systems

Autor:	I. F. Berger, Galina M. Makarova, Alexandr M. Gabay, A.S. Volegov, V. I. Voronin, A. G. Kuchin, Sergey Platonov
Rok vydání:	2014
Předmět:	Crystallography Magnetic measurements Materials science Ferromagnetism Lattice (order) Exchange interaction Neutron diffraction Intermetallic General Materials Science Magnetic phase Dumbbell Condensed Matter Physics Atomic and Molecular Physics and Optics
Zdroj:	Solid State Phenomena. 215:123-126
ISSN:	1662-9779
DOI:	10.4028/www.scientific.net/ssp.215.123
Popis:	The Tm2Fe19-xMnx (x = 0 - 1.5) and Tm2Fe16, Tm2Fe17, Tm2Fe18, Tm2Fe19 intermetallic compounds were synthesized and their magnetic and structural properties were studied. Magnetic measurements, X-ray and neutron diffraction investigations were used. The compounds crystallize in a disordered variant of the hexagonal Th2Ni17-type structure. The lattice parameters a, c increases in the Tm2Fe19-xMnx system, whereas c decreases and a increases in the Tm2Fe19 - Tm2Fe16 system as Fe content decreases. The temperatures of ferromagnetic ordering and spin-reorientation increase as Fe content decreases in these systems. Apparently, the decrease of occupation of defected dumbbell Fe (4e) site causes these regularities.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8e7d5fb906a0fbb0daacdbc02476ca8d https://doi.org/10.4028/www.scientific.net/ssp.215.123 Zobrazit plný text záznamu