Specific Heat of Superfluid 4He: Why Does It Deviate from the T3 Law at Low Temperatures?

2019 ◽  
Vol 88 (8) ◽  
pp. 085002 ◽  
Author(s):  
Takafumi Kita
Keyword(s):  
Specific Heat ◽  
Low Temperatures ◽  
Superfluid 4He

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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