Electronic Specific Heat of Dilute Alloys

1969 ◽  
Vol 178 (3) ◽  
pp. 918-922 ◽  
Author(s):  
P. L. TAYLOR
Keyword(s):  
Specific Heat ◽  
Electronic Specific Heat ◽  
Dilute Alloys

scholarly journals On the electronic specific heat in dilute alloys

1978 ◽  
Vol 56 (2) ◽  
pp. 288-291 ◽  
Author(s):  
L. Larose ◽  
F. W. Kus ◽  
J. P. Carbotte
Keyword(s):  
Specific Heat ◽  
Density Of States ◽  
Pure Metal ◽  
Electronic Specific Heat ◽  
Density Of State ◽  
Mass Renormalization ◽  
Dilute Alloys ◽  
State Changes

The coefficient γ of the electronic specific heat is calculated accounting, on the same footing, for the change in the band density of states and the change in the electron–phonon mass renormalization that occurs when small amounts of impurities are added to a pure metal. For alkali alloys it is found that the changes in the mass renormalization are more important than density of state changes.

Specific heat below 3 °K of a gold–zinc and a gold–indium alloy

1969 ◽  
Vol 47 (10) ◽  
pp. 1077-1081 ◽  
Author(s):  
Douglas L. Martin
Keyword(s):  
Specific Heat ◽  
Face Centered Cubic ◽  
Electronic Specific Heat ◽  
Confidence Limits ◽  
Electric Field Gradients ◽  
Field Gradients ◽  
Atomic Silver ◽  
Face Centered ◽  
Specific Heat Coefficient ◽  
Limiting Value

Face-centered-cubic alloys of gold with 10 atomic % zinc (divalent) and 10 atomic % indium (trivalent), respectively, were measured in the range 0.4 to 3.0 °K. The coefficients of the nuclear specific-heat term were 1.80 ± 0.07 μcal °K/g atom for AuZn and 1.29 ± 0.06 μcal °K/g atom for AuIn (95% confidence limits). For a gold–10 atomic % silver (monovalent) alloy (Martin 1968) the nuclear term was 0.44 μcal °K/g atom. These results show that electric field gradients in alloys are not simply proportional to the valence difference of the components, a conclusion which may be drawn from NMR results. For the AuZn alloy the electronic specific-heat coefficient (γ) is 153.4 ± 0.7 μcal/°K2 g atom and the limiting value of the Debye temperature (θ0c) is 177.0 ± 0.5 °K. For the AuIn alloy γ is 185.9 ± 0.7 μcal/°K2 g atom and θ0c is 159.1 ± 0.3 °K.

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