Low temperature resistivity of Ce-La-Th under pressure | Zendy

J. M. Lawrence | Zendy; J. D. Thompson | Zendy; Z. Fisk | Zendy; B. Batlogg | Zendy

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Low temperature resistivity of Ce-La-Th under pressure

Author(s) -

J. M. Lawrence,

J. D. Thompson,

Z. Fisk,

B. Batlogg

Publication year - 1985

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.335181

Subject(s) - electrical resistivity and conductivity , isostructural , residual resistivity , condensed matter physics , valence (chemistry) , alloy , materials science , temperature coefficient , chemistry , metallurgy , crystal structure , physics , crystallography , composite material , organic chemistry , quantum mechanics

The low temperature resistivity of Ce0.9−xLaxTh0.1 alloys is known to vary as ρ0+αT2. We have investigated the variation of ρ0 and α with pressure for several concentrations x. An unusually strong nonlinear decrease of the residual resistivity with pressure occurs; the magnitude of the decrease is an order‐of‐magnitude larger than in the isostructural nonmagnetic alloy La0.8Th0.2. The temperature coefficient α(P) also decreases strongly. These results are in qualitative accord with recent theories of the resistivity of disordered valence fluctuation compounds.

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