Electrical resistivity and thermopower of Y1-xPrxCo2 compounds

K. Uchima, A. Teruya, Y. Takaesu, H. Akamine, M. Kakihana, K. Tomori, T. Uejo, A. Nakamura, M. Hedo, T. Nakama, K. Yagasaki, A. T. Burkov

Research output: Contribution to journalConference articlepeer-review

Abstract

Electrical resistivity ρ and thermopower S of the pseudo-binary compounds of Y1-xPrxCo2 have been measured in the temperature range between 2 and 300 K under magnetic fields up to 10 T, together with the pressure measurements of ρ and S in Y0.4Pr0.6Co2. The Curie temperature decreases with decreasing x, and vanishes at the critical composition xc ≈ 0.4, where the residual resistivity attains a maximum value. The Curie temperature and the residual resistivity of Y0.4Pr0.6Co2 show the same pressure dependence as those of the heavy-rare-earth based compounds. These behaviors of ρ and S indicate the inhomogeneous distribution of the Co 3d magnetization. The magnetoresistance of the light-rare earth Y1-xPrxCo2 system is negative in the whole range of x, except for x =0 and 1, which is a characteristic behavior related with magnetic state and magnitude of the effective field acting on the Co 3d subsystem.

Original languageEnglish
Article number012044
JournalJournal of Physics: Conference Series
Volume592
Issue number1
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 International Conference on Strongly Correlated Electron Systems, SCES 2014 - Grenoble, France
Duration: 2014 Jul 72014 Jul 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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