Specific Heat and Electrical Resistivity of Exchange-Enhanced DilutePt-Ni Alloys
- 15 April 1970
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 1 (8) , 3283-3290
- https://doi.org/10.1103/physrevb.1.3283
Abstract
Experimental measurements of the specific heat and electrical resistivity of dilute -Ni alloys have been made at temperatures from ∼1.2 to 4.2°K. Specimen compositions were 1.0-, 3.4-, 7.7-, and -at.%Ni for the specific-heat work and 0.67-, 1.3-, 2.0-, 4.0-, and 9.4-at.%Ni for the resistivity work. The specificheat data for each alloy are well fitted by a relation of the form , the resistivity data by a relation of the form . The dependence of , , and upon the Ni concentration may be expressed as follows: over the entire range of composition investigated; for the lower concentrations only, and . The experimental results are used to evaluate current theories of localized spin-fluctuation effects; qualitative agreement is good, although quantitative agreement is very limited.
Keywords
This publication has 26 references indexed in Scilit:
- Role of Impurities in the Properties of Nearly Ferromagnetic Systems: Spin-Orbit InteractionsPhysical Review Letters, 1968
- Magnetostriction and Thermal Expansion of Pd and Paramagnetic Pd:Ni AlloysPhysical Review Letters, 1968
- Specific Heat of Nearly Magnetic Centers in Pd:Ni AlloysPhysical Review Letters, 1968
- Effects of Impurities on Spin Fluctuations in Almost Ferromagnetic MetalsPhysical Review B, 1968
- de Haas-van Alphen Effect and Fermi Surface in PtPhysical Review Letters, 1968
- Specific-Heat Enhancement in Strongly Paramagnetic Pd: Ni AlloysPhysical Review Letters, 1968
- Influence of Band Structure and Interatomic Exchange on Spin Fluctuations in MetalsPhysical Review Letters, 1967
- Magnetic Susceptibility and Specific Heat of Nearly Ferromagnetic Nirh AlloysPhysical Review Letters, 1967
- IDEAL RESISTIVITY OF PLATINUM BELOW 20 °KCanadian Journal of Physics, 1967
- Effect of Band Structure on Mass Renormalization in PalladiumPhysical Review Letters, 1967