Magnetic order, field-induced phase transitions and magnetoresistance in the intercalated compound Fe0.5TiS2 / Baranov N. V.,Sherokalova E. M.,Selezneva N. V.,Proshkin A. V.,Gubkin A. F.,Keller L.,Volegov A. S.,Proskurina E. P. // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2013. - V. 25, l. 6.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Measurements of the magnetic susceptibility, magnetization, electrical resistivity and neutron diffraction have been performed for the compound Fe0.5TiS2 in which Fe atoms are intercalated between S-Ti-S tri-layers. It has been shown that this compound with a monoclinic crystal structure exhibits an antiferromagnetic (AF) ground state below the Neel temperature T-N approximate to 140 K. Small deviations from the stoichiometry and some disordering effects caused by the additional low-temperature heat treatment do not affect substantially the AF state in Fe0.5TiS2. According to neutron diffraction data the magnetic structure at 2 K is described by the propagation vector k = (1/4, 0, 1/4). The Fe magnetic moments with a value of (2.9 +/- 0.1) mu(B) are directed at an angle of (78.5 +/- 1.8)degrees to the layers. Application of the magnetic field at T < T-N induces a metamagnetic phase transition to the ferromagnetic (F) state, which is accompanied by the large magnetoresistance effect (vertical bar Delta rho/rho vertical bar up to 27\%). Below 100 K, the field-induced AF-F transition is found to be irreversible, as evidenced by magnetoresistance and neutron diffraction measurements. The magnetization reversal in the metastable F state is accompanied at low temperatures by substantial hysteresis (Delta H similar to 100 kOe) which is associated with the Ising character of Fe ions.

Author keywords:

SPIN-GLASS; FETI2S4; METAL; FEXTIS2; STATE; TIS2

DOI:

10.1088/0953-8984/25/6/066004

Web of Science ID:

ISI:000313950600020

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB 13
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	066004
Keywords-Plus	SPIN-GLASS; FETI2S4; METAL; FEXTIS2; STATE; TIS2
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Baranov, Nikolai/J-5042-2013 Gubkin, Andrey/J-3240-2013 Proshkin, Alexey/J-7180-2013
ORCID-Numbers	Baranov, Nikolai/0000-0002-9720-5314 Gubkin, Andrey/0000-0002-4280-7561 Proshkin, Alexey/0000-0002-2631-6834
Funding-Acknowledgement	Ural Branch of RAS {[}12-T-2-1012]; RFBR {[}12-03-31156-a]; Ministry of Education and Science of the Russian Federation {[}14.518.11.7020]
Funding-Text	This work was supported by the program of the Ural Branch of RAS (project No 12-T-2-1012), by RFBR (Grant No 12-03-31156-a) and by the Ministry of Education and Science of the Russian Federation (Contract 14.518.11.7020).
Number-of-Cited-References	32
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	70
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	076IR