Magnetic-susceptibility and heat-capacity measurements on PrRhSb

Malik, S. K. ; Takeya, H. ; Gschneidner Jr., K. A. (1994) Magnetic-susceptibility and heat-capacity measurements on PrRhSb Physical Review B, 50 (17). pp. 12540-12545. ISSN 0163-1829

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Official URL: http://prb.aps.org/abstract/PRB/v50/i17/p12540_1

Related URL: http://dx.doi.org/10.1103/PhysRevB.50.12540

Abstract

Magnetic-susceptibility (ac and dc) and heat-capacity measurements have been carried out on the compound PrRhSb. These measurements reveal two magnetic transitions in this compound-one at about 18 K and the other around 6 K. In the dc susceptibility the 18-K transition is evident as the temperature below which a magnetic correlation sets in and the susceptibility is found to be field dependent. The lower transition manifests as a peak in the susceptibility of zero-field-cooled samples which were measured in low applied fields. The electronic-specific-heat coefficient, γ, is found to be 33 mJ/molK2 between 40 and 70 K after correcting for the lattice contribution taken to be the same as in its La analog. The γ value is fairly large for a Pr compound and may be indicative of moderately heavy quasiparticles. A Kondo-type interaction of the Pr 4f electrons with the conduction electrons may be responsible for high-magnetic-ordering temperatures and the moderately large γ value in this compound.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:23288
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