Low-temperature enhancement of the thermopower of amorphous (Zr0.64Ni0.36)1-xAlxalloys
- 13 August 1990
- journal article
- research article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 2 (32) , 6755-6762
- https://doi.org/10.1088/0953-8984/2/32/006
Abstract
Enhancements of the low-temperature thermopower of amorphous melt-quenched (Zr0.64Ni0.36)1-xAlx alloys with x=0, 0.05 , 0.10, 0.15, 0.20 and 0.25 are shown to be in good agreement with the predictions for the electron-phonon enhancement. The results imply that the low-frequency part of the Eliashberg function alpha 2( omega ) F( omega ) is proportional to omega n with n>1 for these alloys. These alloys are weak-coupling superconductors, and the addition of Al reduces the electron-phonon coupling constant lambda despite the tendency to strong coupling in simple amorphous metals.Keywords
This publication has 33 references indexed in Scilit:
- Superconductivity in amorphous ZrNisimple-metal ternary alloysPhysics Letters A, 1990
- Electron transport properties of amorphous ( alloysPhysical Review B, 1989
- Calculation of the temperature dependence of the thermopower in amorphous metalsJournal of Physics F: Metal Physics, 1987
- Scaling behavior in amorphous and disordered metalsPhysical Review B, 1984
- Hall-effect and thermopower of metallic glassesJournal of Non-Crystalline Solids, 1984
- Thermoelectric power of Ni-Zr metal glassesPhysical Review B, 1983
- Thermopower of amorphous La0.82Ga0.18 and La0.78Ga0.22 alloysSolid State Communications, 1981
- Thermoelectric powers of amorphous transition metal alloys and electron-phonon enhancementJournal of Physics F: Metal Physics, 1981
- McMillan's equation and the Tc of superconductorsSolid State Communications, 1972
- Donor Diffusion Dynamics in SiliconPhysical Review B, 1971