Magnetic state of the Co-sublattice in Tb1-xYxCo2 / Baranov N.V., Yermakov A.A., Pirogov A.N., Teplykh A.E., Inoue K., Hosokoshi Yu. // Physica B: Condensed Matter. - 1999. - V. 269, l. 3-4. - P. 284-289.

ISSN:

09214526

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 xc≈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 ρres for Tb1-xYxCo2 (as well as for other (R1-xYx)Co2 compounds) correlates with the variation of the coefficient γ (linear term of the low-temperature specific heat). In vicinity of xc where the Co-magnetic moment is unstable the maximums of ρres and γ can be associated with the large contribution from localized spin density fluctuations of d-electrons to both electrical resistivity and specific heat.

Author keywords:

Index keywords:

Composition effects; Crystal lattices; Electric conductivity measurement; Electron transport properties; Intermetallics; Magnetic moments; Magnetic susceptibility; Magnetization; Magnetoresistance; Ne

DOI:

10.1016/S0921-4526(99)00152-0

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-0032649416&doi=10.1016%2fS0921-4526%2899%2900152-0&partnerID=40&md5=80b3e7bfa9fa6d92fb8511e8b60369dc

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Affiliations	Inst. of Phys. and Appl. Mathematics, Ural Stt. Univ., Lenin A., Ekaterinburg, Russian Federation; Institute of Metal Physics, Russ. Acad. of Sci., 620219 GSP-170, Ekaterinburg, Russian Federation; Institute for Molecular Science, Myodaji, 444, Okazaki, Japan
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Correspondence Address	Baranov, N.V.; Ural State Univ, Ekaterinburg, Russian Federation
Publisher	Elsevier Science Publishers B.V., Amsterdam, Netherlands
CODEN	PHYBE
Language of Original Document	English
Abbreviated Source Title	Phys B Condens Matter
Source	Scopus