Specific Heat of Single-Crystalline Cd3As2, Cd3P2, and Zn3P2 at Low Temperatures

1989 ◽  
Vol 111 (2) ◽  
pp. K165-K169 ◽  
Author(s):  
K. Bartkowski ◽  
G. Pompe ◽  
E. Hegenbarth
Keyword(s):  
Specific Heat ◽  
Low Temperatures ◽  
Single Crystalline

THE LOW-TEMPERATURE SPECIFIC HEAT OF U(Pt, Pd)3

1993 ◽  
Vol 07 (01n03) ◽  
pp. 14-17
Author(s):  
H. P. VAN DER MEULEN ◽  
J. J. M. FRANSE ◽  
A. DE VISSER
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
Specific Heat ◽  
Applied Magnetic Field ◽  
Low Temperatures ◽  
Single Crystalline ◽  
Normal Part ◽  
Electron Contribution ◽  
Heavy Electron ◽  
Low Temperature Specific Heat

Specific-heat measurements on single-crystalline samples of U ( Pt 1− x Pd x )3 ( x = 0.00, 0.05 and 0.10) reveal anomalously large values for c/T at low temperatures. The data for UPt 3 have previously been analyzed by making use of the enhanced value of the low-temperature Grüneisen parameter. By this analysis, the heavy-electron contribution to the specific heat has been separated from the normal part that is largely due to the phonon term. Taking this latter term to be the same for all three compounds, the heavy-electron contribution has been evaluated for temperatures below 20 K. This contribution is compared with a spin-1/2 Kondo-type of specific heat. The resulting curves for the x = 0.00 and x = 0.10 alloys are very similar and mainly differ in the temperature at which the maximum is found. The effect of an applied magnetic field within the hexagonal plane, however, shifts the maximum to lower temperatures for x = 0.00 whereas for x = 0.10 a shift towards higher temperatures is found.

Specific heat of ordered and isotopically disordered lattices

1978 ◽  
Vol 56 (10) ◽  
pp. 1390-1394
Author(s):  
K. P. Srivastava
Keyword(s):  
Specific Heat ◽  
Low Temperatures ◽  
Numerical Study ◽  
Three Dimensional ◽  
Constant Volume ◽  
Nearest Neighbour ◽  
Two Dimensional ◽  
Appreciable Difference ◽  
Substantial Change ◽  
Neighbour Interaction

An extensive numerical study on specific heat at constant volume (Cv) for ordered and isotopically disordered lattices has been made. Cv at various temperatures for ordered and disordered linear and two-dimensional lattices have been compared and no appreciable difference in Cv between these two structures has been observed. Effect of concentration of light atoms on Cv for three-dimensional isotopically disordered lattices has also been shown.In spite of taking next-nearest-neighbour interaction into account, no substantial change in Cv between the ordered and isotopically disordered linear lattices has been found. It is shown that the low lying modes contribute substantially at low temperatures.

Specific heat of the iron-hydrogen system at low temperatures

1979 ◽  
Vol 13 (7) ◽  
pp. 573-575 ◽  
Author(s):  
Hiroaki Wada ◽  
Koshiro Sakamoto
Keyword(s):  
Specific Heat ◽  
Low Temperatures ◽  
Hydrogen System

Specific heat of single crystal Ba0.6K0.4BiO3 at low temperatures

1996 ◽  
Vol 97 (3) ◽  
pp. 175-178 ◽  
Author(s):  
E.B. Nyeanchi ◽  
D.F. Brewer ◽  
T.E. Hargreaves ◽  
N.E. Hussey ◽  
A.L. Thomson ◽  
...  
Keyword(s):  
Single Crystal ◽  
Specific Heat ◽  
Low Temperatures

Specific Heat Anomalies of PtCo Alloys at Very Low Temperatures

1974 ◽  
pp. 520-524 ◽  
Author(s):  
P. Costa-Ribeiro ◽  
M. Saint-Paul ◽  
D. Thoulouze ◽  
R. Tournier
Keyword(s):  
Specific Heat ◽  
Low Temperatures

Specific Heat

1983 ◽  
pp. 47-73
Author(s):  
L. L. Sparks
Keyword(s):  
Solid State ◽  
Specific Heat ◽  
Temperature Change ◽  
Low Temperatures ◽  
Historical Development ◽  
Fundamental Property ◽  
Data Sources ◽  
Unit Mass ◽  
Practical Applications ◽  
Lattice Specific Heat

Abstract Specific heat is a fundamental property that relates the total heat per unit mass added to a system to the resultant temperature change of the system. This chapter begins with the definition and historical development of specific heat. Thermodynamic and solid state relationships are presented which include discussions about lattice specific heat and the effects of magnetic and superconducting transitions. Data sources for practical applications and methods of estimating specific heat for materials are also included. The chapter concludes with a section concerning the measurement of specific heat at low temperatures.

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