Competing magnetic interactions in rare-earth manganese silicides and germanides

Autor:	Eyup Duman, Yalcin Elerman, Mehmet Acet, Ilker Dincer, Ayhan Elmali
Rok vydání:	2007
Předmět:	Materials science Magnetic structure Condensed matter physics Rare earth chemistry.chemical_element Manganese Atmospheric temperature range Condensed Matter Physics Magnetic phase diagram Cell parameter Electronic Optical and Magnetic Materials Magnetization Tetragonal crystal system chemistry
Zdroj:	Journal of Magnetism and Magnetic Materials. 309:40-53
ISSN:	0304-8853
DOI:	10.1016/j.jmmm.2006.06.010
Popis:	We have investigated the magnetic properties of R x R 1 - x ′ Mn 2 X 2 (X: Si, Ge) for various combinations of rare-earth elements R and R ′ by examining the evolution of the features in the temperature dependence of the low-field magnetization. By making use of the known magnetic structure of the parent compositions x = 0 and 1, the results of low-field magnetization measurements are interpreted for intermediate compositions to give information on their magnetic structure. We find antiferromagnetic–ferromagnetic (AF–FM) transitions, whereby the transition can be sharp or evolve over a considerable temperature range. We examine the magnetic transition temperatures as a function of the tetragonal unit cell parameter a and find that the critical spacings associated with interlayer AF–FM transitions are different in the silicides and germanides.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9f0484f75ec74a3c431a719fe3083f40 https://doi.org/10.1016/j.jmmm.2006.06.010 Zobrazit plný text záznamu Full Text from ScienceDirect