Hydrothermal synthesis and magnetic studies of transition metal nocerites M3(BO3)F3 (M=Fe, Co, Ni)

Autor:	Emmanuelle Suard, Jean Voiron, Gwenaël Corbel, Marc Leblanc
Rok vydání:	2001
Předmět:	Crystallography Nuclear magnetic resonance Materials science Ferromagnetism Transition metal Hydrothermal synthesis Antiferromagnetism Crystal structure Isostructural Condensed Matter Physics Magnetic susceptibility Hydrothermal circulation Electronic Optical and Magnetic Materials
Zdroj:	Journal of Magnetism and Magnetic Materials. 234:423-430
ISSN:	0304-8853
DOI:	10.1016/s0304-8853(01)00414-0
Popis:	Polycrystalline samples of M3(BO3)F3 (M=Fe, Co, Ni), isostructural with nocerite Mg3(BO3)(OH,F)3, have been prepared in supercritical hydrothermal conditions. These compounds represent with boracites, M3B7O13F (M=Mg, Cr, Mn, Fe, Co, Zn), the only transition metal fluoride borates known to date. Co3(BO3)F3 and Ni3(BO3)F3 are antiferromagnetic with TN=17(2) and 40(2) K, respectively. Spin-flop transitions at BC1=4.0 T and BC2=7.5 T occur at 1.6 K in Co3(BO3)F3, while a parasitic ferromagnetism (0.02 μB/Ni2+ at 1.6 K) appears below TN in Ni3(BO3)F3. The magnetic structures consist of three spin sub-lattices of double rutile-type ferromagnetic chains.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::339f5df89dc524aa1d16f3e3d049eff9 https://doi.org/10.1016/s0304-8853(01)00414-0 Zobrazit plný text záznamu Full Text from ScienceDirect