Pseudobinary Fe4Ti3S8 compound with a NiAs-type structure: Effect of Ti for Fe substitution / Ibrahim P. N. G.,Selezneva N. V.,Gubkin A. F.,Baranov N. V. // SOLID STATE SCIENCES. - 2013. - V. 24, l. . - P. 26-29.

ISSN/EISSN:

1293-2558 / 1873-3085

Type:

Article

Abstract:

The transition metal sulfide Fe4Ti3S8 with 7:8 composition has been synthesized and studied by using X-ray diffraction, magnetization and electrical resistivity measurements. This compound exhibits a monoclinic crystal lattice (space group I12/m1). The substitution of Ti for Fe in Fe7S8 is found to result in a lowering of the Curie temperature (T-C approximate to 205 K), in a larger value of the coercive field (H-c similar to 9 kOe at low temperatures) and in a substantial growth of the resultant magnetic moment per formula unit (Am) in comparison with Fe7S8. An enhanced value of mu(FU) is attributed to the preferential substitution of Ti in alternating cation layers. From the paramagnetic susceptibility measured within temperature interval (250-350) K, a reduced value of the effective moment per iron (mu(Fe) similar to 2.4 mu(B)) was determined. The electrical resistivity of Fe4Ti3S8 shows a non-metallic behavior and is affected by magnetic ordering. (c) 2013 Elsevier Masson SAS. All rights reserved.

Author keywords:

Fe4Ti3S8; NiAs-type structure; Preferential substitution; Magnetic ordering; Coercive field POWDER NEUTRON-DIFFRACTION; MAGNETIC-PROPERTIES; PYRRHOTITE; TRANSITION; ANISOTROPY; FE7SE8

DOI:

10.1016/j.solidstatesciences.2

Web of Science ID:

ISI:000325671800005

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
EISSN	1873-3085
Keywords-Plus	POWDER NEUTRON-DIFFRACTION; MAGNETIC-PROPERTIES; PYRRHOTITE; TRANSITION; ANISOTROPY; FE7SE8
Research-Areas	Chemistry; Physics
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical; Physics, Condensed Matter
Author-Email	peteribrahim@yandex.ru
ResearcherID-Numbers	Gubkin, Andrey/J-3240-2013 Baranov, Nikolai/J-5042-2013
ORCID-Numbers	Gubkin, Andrey/0000-0002-4280-7561 Baranov, Nikolai/0000-0002-9720-5314
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-02-00364, 13-02-96038]; government of Sverdlovsk region
Funding-Text	This work was supported by the Russian Foundation for Basic Research (projects no 13-02-00364 and 13-02-96038) and by the government of Sverdlovsk region.
Number-of-Cited-References	21
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	17
Journal-ISO	Solid State Sci.
Doc-Delivery-Number	234VG