Precision Measurement of Electronic Specific Heat in Dilute Alloys

1965 ◽  
pp. 1066-1066 ◽  
Author(s):  
S. Shinozaki ◽  
A. Arrott
1978 ◽  
Vol 56 (2) ◽  
pp. 288-291 ◽  
Author(s):  
L. Larose ◽  
F. W. Kus ◽  
J. P. Carbotte

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.


1969 ◽  
Vol 178 (3) ◽  
pp. 918-922 ◽  
Author(s):  
P. L. TAYLOR

1969 ◽  
Vol 47 (10) ◽  
pp. 1077-1081 ◽  
Author(s):  
Douglas L. Martin

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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