Thermal Conductivity and Electrical Resistivity of Intermetallic RECu 2  Compounds (RE  Lu, Ho, Er, Dy) | Zendy

Bartkowski K. | Zendy; Gratz E. | Zendy; Rafałsowicz J. | Zendy; Tyc T. | Zendy

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Thermal Conductivity and Electrical Resistivity of Intermetallic RECu 2 Compounds (RE  Lu, Ho, Er, Dy)

Author(s) -

Bartkowski K.,

Gratz E.,

Rafałsowicz J.,

Tyc T.

Publication year - 1992

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221700126

Subject(s) - electrical resistivity and conductivity , intermetallic , condensed matter physics , wiedemann–franz law , magnetic susceptibility , thermal conductivity , scattering , rare earth , materials science , magnetic moment , chemistry , physics , thermodynamics , mineralogy , metallurgy , alloy , quantum mechanics , optics

The temperature dependence of the thermal conductivity, λ ( T ), and the electrical resistivity, ϱ ( T ), is measured for the heavy rare‐earth RECu 2 (RE Lu, Er, Ho, Dy) compounds in the temperature region from 2 up to about 30 K. Anomalies observed in both λ ( T ) and ϱ ( T ) curves correspond to magnetic transitions as are known from susceptibility measurements. Assuming the validity of the Wiedemann‐Franz law the electronic (λ e ) and the lattice (λ g ) contributions of the total thermal conductivity are separated. The anomalies caused by spin‐dependent scattering processes, due to the change in the arrangement of magnetic moments, are much more pronounced in λ e , but they are also visible in the temperature dependence of the Lorenz number L ( T ).

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