The magnetic state of the Co-sublattice in Tb1-xYxCo2 / Baranov NV,Yermakov AA,Pirogov AN,Teplykh AE,Inoue K,Hosokoshi Y // PHYSICA B. - 1999. - V. 269, l. 3-4. - P. 284-289.

ISSN/EISSN:

0921-4526 / нет данных

Type:

Article

Abstract:

The Tb1-xYxCo2 pseudobinary series has been studied by means of resistivity, magnetic susceptibility and neutron diffraction measurements. According to the neutron diffraction a long-range magnetic order in this system exists only for x < 0.8. In compounds with the yttrium concentration near x(c) approximate to 0.8 a short-range magnetic order and anomalies in the transport properties: maximal value of the residual resistivity and large magnetoresistance effect (about - 30\%) were observed. We have found that the concentration dependence of the residual resistivity rho(res) for Tb1-xYxCo2 (as well as for other (R1-xYx)Co-2 compounds) correlates with the variation of the coefficient gamma (linear term of the low-temperature specific heat). In vicinity of x(c) where the Go-magnetic moment is unstable the maximums of rho(res) and gamma can be associated with the large contribution from localized spin density fluctuations of d-electrons to both electrical resistivity and specific heat. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

Author keywords:

RCo2 Laves phases; itinerant magnetism; electrical resistivity; spin fluctuations ITINERANT ELECTRON METAMAGNETISM; HEAT MEASUREMENTS; RESISTIVITY; EARTH

DOI:

10.1016/S0921-4526(99)00152-0

Web of Science ID:

ISI:000081470700009

Соавторы в МНС:

Другие поля

Поле	Значение
Month	SEP
Publisher	ELSEVIER SCIENCE BV
Address	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language	English
Keywords-Plus	ITINERANT ELECTRON METAMAGNETISM; HEAT MEASUREMENTS; RESISTIVITY; EARTH
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	INOUE, Katsuya/E-9221-2010 Baranov, Nikolai/J-5042-2013 Pirogov, Alexander/K-8115-2013 Aleksander, Teplykh/J-5571-2013
ORCID-Numbers	Baranov, Nikolai/0000-0002-9720-5314 Pirogov, Alexander/0000-0001-7321-1245 Aleksander, Teplykh/0000-0002-3698-9100
Number-of-Cited-References	21
Usage-Count-Since-2013	7
Journal-ISO	Physica B
Doc-Delivery-Number	216XX