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- Sundqvist, Bertil
(författare)
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Resistivity saturation in fcc La under high pressure
- 1992
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 69:18, s. 2693-2696
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Tidskriftsartikel (refereegranskat)abstract
- Data are presented for the electrical resistivity ρ of fcc La as a function of T and p in the range 70 to 700 K and 0 to 1.25 GPa. The data are analyzed using the phenomenological ‘‘parallel resistivity’’ formula for resistivity saturation, which describes very well the T dependences of both ρ and its pressure coefficient. The pressure coefficients of the electron-phonon interaction parameter and Tc are calculated from the p dependence of the electron-phonon component, and the p dependence of the parallel saturation resistivity is obtained from band-structure calculations using a simple Bloch-Boltzmann model. In both cases excellent agreement with experiment is found.
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