Ni intercalation of titanium diselenide: effect on the lattice, specific heat and magnetic properties / Baranov NV,Inoue K,Maksimov VI,Ovchinnikov AS,Pleschov VG,Podlesnyak A,Titov AN,Toporova NV // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2004. - V. 16, l. 50. - P. 9243-9258.

ISSN/EISSN:

0953-8984 / 1361-648X

Type:

Article

Abstract:

Intercalated NixTiSe2 compounds with Ni concentration up to x = 0.5 have been investigated using x-ray diffraction, magnetic susceptibility and specific heat measurements. A set of peculiarities caused by the intercalation, such as a significant decrease of the gap between Se-Ti-Se trilayers and depletion of the low-frequency phonons due to the stiffening of the lattice as well as an enhancement of the density of electronic states at low Ni content (x < 0.33), is attributed to hybridization of the Ni 3d states with TiSe2 bands and formation of covalent-like links between Se-Ti-Se trilayers via the inserted Ni ions. NixTiSe2 compounds with intercalant content up to x = 0.5 show a paramagnetic behaviour unlike MxTiSe2 compounds intercalated by other 3d metals (M = Cr, Mn, Fe, Co). The Ni magnetic moment in NixTiSe2 is suggested to be of an itinerant nature. A pronounced correlation between the change of the lattice parameter c(0) and the value of the effective magnetic moment, which is observed in NixTiSe2 as well in MxTiSe2 systems intercalated by other 3d metals, indicates that the magnetic moment on the inserted atom is controlled by the hybridization degree of M 3d states with TiSe2 bands.

Author keywords:

M=3D TRANSITION-METALS; SUPERLATTICE FORMATION; PHYSICAL-PROPERTIES; CIRCULAR-DICHROISM; X-RAY; TISE2; FEXTIS2; M(X)TIS(2); DYNAMICS; BEHAVIOR

DOI:

10.1088/0953-8984/16/50/014

Web of Science ID:

ISI:000226292800017

Соавторы в МНС:

Другие поля

Поле	Значение
Month	DEC 22
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	PII S0953-8984(04)86269-6
EISSN	1361-648X
Keywords-Plus	M=3D TRANSITION-METALS; SUPERLATTICE FORMATION; PHYSICAL-PROPERTIES; CIRCULAR-DICHROISM; X-RAY; TISE2; FEXTIS2; M(X)TIS(2); DYNAMICS; BEHAVIOR
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	nikolai.baranov@usu.ru
ResearcherID-Numbers	Podlesnyak, Andrey/A-5593-2013 Maksimov, Veniamin/J-4300-2013 Titov, Alexander/K-4328-2013 Baranov, Nikolai/J-5042-2013 Ovchinnikov, Alexander/B-9906-2009 INOUE, Katsuya/E-9221-2010
ORCID-Numbers	Podlesnyak, Andrey/0000-0001-9366-6319 Maksimov, Veniamin/0000-0002-9228-3735 Titov, Alexander/0000-0003-3636-2604 Baranov, Nikolai/0000-0002-9720-5314 Ovchinnikov, Alexander/0000-0002-1173-9260
Number-of-Cited-References	51
Usage-Count-Since-2013	18
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	887GD