Specific heat and thermal-conductivity measurements on cesium and thallous halide crystals at low temperatures

1984 ◽  
Vol 30 (10) ◽  
pp. 6057-6066 ◽  
Author(s):  
W. N. Lawless
Keyword(s):  
Thermal Conductivity ◽  
Specific Heat ◽  
Low Temperatures ◽  
Conductivity Measurements

Specific Heat and Thermal Conductivity of Superconducting UBe13and UPt3at Very Low Temperatures

1987 ◽  
Vol 26 (S3-2) ◽  
pp. 1217 ◽  
Author(s):  
H. R. Ott ◽  
E. Felder ◽  
A Bernasconi ◽  
Z. Fisk ◽  
J. L. Smith ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Specific Heat ◽  
Low Temperatures

The thermal conductivities of some dielectric solids at low temperatures (Experimental)

1951 ◽  
Vol 208 (1092) ◽  
pp. 90-108 ◽  
Keyword(s):  
Thermal Conductivity ◽  
Thermal Resistance ◽  
Specific Heat ◽  
Temperature Variation ◽  
Temperature Region ◽  
Low Temperatures ◽  
Quartz Crystal ◽  
Corundum Crystal ◽  
Before And After ◽  
Dielectric Solids

An apparatus is described in which the thermal conductivity of solids can be determined at any temperature between 2 and 90°K. Several glasses and dielectric crystals have been measured. It had previously been found that at high temperatures the conductivity of glasses is proportional to the specific heat, but at low temperatures it falls off more slowly than the specific heat. The present experiments show that there is a temperature region in which the conductivity is nearly independent of temperature. A similar variation of conductivity is found for the thermo-plastic Perspex. The effect of lattice defects in crystals was studied by measuring the thermal conductivity of a quartz crystal before and after successive periods of neutron irradiation. After prolonged irradiation the conductivity approached, in both magnitude and temperature variation, that of quartz glass. Subsequent heating produced a substantial recovery in the conductivity. The results on both glasses and on crystals can be explained by the theory developed by Klemens (1951). Further measurements made on a corundum crystal confirm the importance of the ‘Umklapp’ processes, postulated by Peierls, in causing thermal resistance.

scholarly journals Thermal conductivity measurements of the energy-gap anisotropy of superconducting LaFePO at low temperatures

2009 ◽  
Vol 80 (22) ◽  
Author(s):  
M. Yamashita ◽  
N. Nakata ◽  
Y. Senshu ◽  
S. Tonegawa ◽  
K. Ikada ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Low Temperatures ◽  
Energy Gap ◽  
Conductivity Measurements ◽  
Gap Anisotropy

Thermal conductivity measurements of single-crystalline bismuth nanowires by the four-point-probe 3-ω technique at low temperatures

2013 ◽  
Vol 24 (18) ◽  
pp. 185401 ◽  
Author(s):  
Seung-Yong Lee ◽  
Gil-Sung Kim ◽  
Mi-Ri Lee ◽  
Hyuneui Lim ◽  
Wan-Doo Kim ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Low Temperatures ◽  
Conductivity Measurements ◽  
Single Crystalline ◽  
Bismuth Nanowires

Dynamic properties of silica aerogels as deduced from specific-heat and thermal-conductivity measurements

1992 ◽  
Vol 45 (18) ◽  
pp. 10363-10376 ◽  
Author(s):  
A. Bernasconi ◽  
T. Sleator ◽  
D. Posselt ◽  
J. K. Kjems ◽  
H. R. Ott
Keyword(s):  
Thermal Conductivity ◽  
Specific Heat ◽  
Dynamic Properties ◽  
Silica Aerogels ◽  
Conductivity Measurements

scholarly journals Thermal conductivity measurements at low temperatures

1995 ◽  
Vol 18 (8) ◽  
pp. 1007-1011 ◽  
Author(s):  
P Balaya ◽  
H S Jayanna ◽  
Hemant Joshi ◽  
G Sumana ◽  
V G Narasimha Murthy ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Low Temperatures ◽  
Conductivity Measurements
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