Ratio of the Diffusion Coefficient to the Mobility Coefficient for Electrons in He, Ar,N2,H2,D2, CO, and CO2at Low Temperatures and LowEp

1962 ◽  
Vol 128 (6) ◽  
pp. 2661-2671 ◽  
Author(s):  
Roger W. Warren ◽  
James H. Parker
Keyword(s):  
Diffusion Coefficient ◽  
Low Temperatures ◽  
Mobility Coefficient

scholarly journals Determining the Diffusion Coefficient of Lithium Insertion Cathodes from GITT measurements: Theoretical Analysis for low Temperatures

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Thomas Schied ◽  
Alexander Nickol ◽  
Christian Heubner ◽  
Michael Schneider ◽  
Alexander Michaelis ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Theoretical Analysis ◽  
Low Temperatures ◽  
Lithium Insertion

SPIN DIFFUSION COEFFICIENT OF A1-PHASE OF SUPERFLUID 3He AT LOW TEMPERATURES

2009 ◽  
Vol 23 (12) ◽  
pp. 1603-1610 ◽  
Author(s):  
R. AFZALI ◽  
F. PASHAEE
Keyword(s):  
Diffusion Coefficient ◽  
Boltzmann Equation ◽  
Low Temperatures ◽  
Spin Diffusion ◽  
Superfluid 3He ◽  
Total Spin ◽  
Equation Approach ◽  
Fluid Component ◽  
Melting Pressure ◽  
Superfluid Component

The spin diffusion coefficient tensor of the A1-phase of superfluid 3 He at low temperatures and melting pressure is calculated using the Boltzmann equation approach and Pfitzner procedure. Then considering Bogoliubov-normal interaction, we show that the total spin diffusion is proportional to 1/T2, the spin diffusion coefficient of superfluid component [Formula: see text] is proportional to T-2, and the spin diffusion coefficient of super-fluid component [Formula: see text] is independent of temperature. Furthermore, it is seen that superfluid components play an important role in spin diffusion of the A1-phase.

Measuring the mutual gas diffusion coefficient at low temperatures

1970 ◽  
Vol 19 (5) ◽  
pp. 1451-1453 ◽  
Author(s):  
P. E. Suetin ◽  
A. E. Loiko ◽  
B. A. Kalinin ◽  
Yu. F. Gerasimov
Keyword(s):  
Diffusion Coefficient ◽  
Low Temperatures ◽  
Gas Diffusion

Tracer Impurity Diffusion in Liquid Metals: Au in Ga

1974 ◽  
Vol 29 (6) ◽  
pp. 959-960 ◽  
Author(s):  
P.-E. Eriksson ◽  
S. J. Larsson
Keyword(s):  
Activation Energy ◽  
Diffusion Coefficient ◽  
Low Temperatures ◽  
Arrhenius Plot ◽  
Liquid Metals ◽  
Impurity Diffusion ◽  
Straight Line ◽  
Linear Plot

The diffusion coefficient of 198Au in liquid Ga has been measured between 35 and 460 °C. The results can be represented by a linear plot of D vs T or by an Arrhenius plot. The latter yields the parameters D0 = 4.9·10-4 cm2/s and Q = 2.65 kcal/mol. However, some distinct departures from the straight line characteristics, showing a considerably higher “activation energy” at the low temperatures, suggest the possibility that clusters composed of two or several atoms may partake in diffusion.

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