Possible reappearance of the charge density wave transition in MxTiSe2 compounds intercalated with 3d metals / Baranov N. V.,Maksimov V. I.,Mesot J.,Pleschov V. G.,Podlesnyak A.,Pomjakushin V.,Selezneva N. V. // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2007. - V. 19, l. 1.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Measurements of the electrical resistivity have been performed on MxTiSe2 compounds intercalated with 3d metals (M = Cr, Mn, Fe, Ni) up to x = 0.5. The charge density wave (CDW) transition which is observed in pure TiSe2 below similar to 200 K disappears for intercalation x > 0.1, while a further increase of the intercalant content (x >= 0.25, M = Cr, Mn or Fe) leads to the appearance of pronounced anomalies in the temperature dependences of the resistivity in the same temperature range where the CDW transition takes place in the pure TiSe2 compound. These anomalies in highly intercalated MxTiSe(2) are associated with the reappearance of a superstructure formation and associated CDW state. For Mn0.33TiSe2, the structural phase transition was evidenced from both powder neutron diffraction measurements and specific heat data. The observed results are discussed in terms of the degree of deformation of Se-Ti-Se sandwiches, which we believe play a key role in the disappearance and reappearance of the CDW state in MxTiSe2 as a function of increasing M concentration. The change in the electronic structure due to the intercalation seems not to strongly influence the presence of the CDW.

Author keywords:

MAGNETIC-PROPERTIES; TITANIUM DISELENIDE; SUPERLATTICE FORMATION; TRANSPORT-PROPERTIES; SEMIMETAL TISE2; SYSTEM; HEAT; CR; INSTABILITY; CHARACTERS

DOI:

10.1088/0953-8984/19/1/016005

Web of Science ID:

ISI:000243136300006

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN 10
Publisher	IOP PUBLISHING LTD
Address	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
Language	English
Article-Number	016005
Keywords-Plus	MAGNETIC-PROPERTIES; TITANIUM DISELENIDE; SUPERLATTICE FORMATION; TRANSPORT-PROPERTIES; SEMIMETAL TISE2; SYSTEM; HEAT; CR; INSTABILITY; CHARACTERS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Maksimov, Veniamin/J-4300-2013 Baranov, Nikolai/J-5042-2013 Pomjakushin, Vladimir/J-6259-2014 Podlesnyak, Andrey/A-5593-2013
ORCID-Numbers	Maksimov, Veniamin/0000-0002-9228-3735 Baranov, Nikolai/0000-0002-9720-5314 Pomjakushin, Vladimir/0000-0003-2180-8730 Podlesnyak, Andrey/0000-0001-9366-6319
Number-of-Cited-References	44
Usage-Count-Since-2013	19
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	121CS