Ferromagnetism and structural transformations caused by Cr intercalation into TiTe2 / Baranov N. V.,Pleshchev V. G.,Selezneva N. V.,Sherokalova E. M.,Korolev A. V.,Kazantsev V. A.,Proshkin A. V. // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2009. - V. 21, l. 50.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Crystal structure investigations, electrical resistivity, and magnetic measurements have been performed for polycrystalline samples of intercalated compounds CrxTiTe2 with a Cr concentration up to x = 0.65. According to the room-temperature x-ray diffraction study of CrxTiTe2, the initial hexagonal crystal structure transforms to a monoclinic one with increasing Cr content up to x >= 0.5 due to the ordering of Cr ions. The intercalation results in the change of the resistivity behavior in CrxTiTe2 from metal-like at x = 0 to insulator-like above x = 0.33 and leads to ferromagnetic ordering of Cr magnetic moments at x >= 0.5. For the compound Cr0.25TiTe2, structural transformations and anomalous resistivity behavior are observed around 230 K, which cannot be explained only by the order-disorder transition within the subsystem of intercalated Cr ions. Structural changes within Te-Ti-Te sandwiches associated with charge density wave instability are suggested to be involved in this phase transition as well.

Author keywords:

TRANSITION-METAL DICHALCOGENIDES; MAGNETIC-PROPERTIES; ELECTRICAL-RESISTIVITY; ELECTRONIC-PROPERTIES; TISE2; TITANIUM; NI; CHALCOGENIDES; COMPLEXES; FE

DOI:

10.1088/0953-8984/21/50/506002

Web of Science ID:

ISI:000272164300019

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC 16
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	506002
Keywords-Plus	TRANSITION-METAL DICHALCOGENIDES; MAGNETIC-PROPERTIES; ELECTRICAL-RESISTIVITY; ELECTRONIC-PROPERTIES; TISE2; TITANIUM; NI; CHALCOGENIDES; COMPLEXES; FE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	nikolai.baranov@usu.ru
ResearcherID-Numbers	Proshkin, Alexey/J-7180-2013 Baranov, Nikolai/J-5042-2013 Alexander, Korolev/K-3036-2013 kazantsev, vadim/J-5186-2013
ORCID-Numbers	Proshkin, Alexey/0000-0002-2631-6834 Baranov, Nikolai/0000-0002-9720-5314 Alexander, Korolev/0000-0002-5104-3997 kazantsev, vadim/0000-0003-2407-6280
Funding-Acknowledgement	Russian Foundation for Basic Research {[}09-02-00441-a]; Ministry of Education and Science of the Russian Federation {[}2.1.1.1682]
Funding-Text	This work was partly supported by the Russian Foundation for Basic Research (grant No 09-02-00441-a) as well as by the program of the Ministry of Education and Science of the Russian Federation (Project No 2.1.1.1682).
Number-of-Cited-References	32
Usage-Count-Last-180-days	8
Usage-Count-Since-2013	63
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	524SX