Specific heat of speer carbon resistor thermometers at low temperatures and in magnetic fields

1991 ◽  
Vol 62 (3) ◽  
pp. 837-838 ◽  
Author(s):  
B. Andraka ◽  
G. R. Stewart
Keyword(s):  
Magnetic Fields ◽  
Specific Heat ◽  
Low Temperatures ◽  
Carbon Resistor

UPt 3 at very low temperatures: Specific heat in high magnetic fields

1989 ◽  
Vol 162-164 ◽  
pp. 415-416 ◽  
Author(s):  
E. Schuberth ◽  
G. Hofmann ◽  
F. Gross ◽  
K. Andres
Keyword(s):  
Magnetic Fields ◽  
Specific Heat ◽  
Low Temperatures ◽  
High Magnetic Fields

AN ADIABATIC CALORIMETER FOR THE TEMPERATURE REGION BELOW 20°K.—THE SPECIFIC HEAT OF SODIUM CHLORIDE

1955 ◽  
Vol 33 (2) ◽  
pp. 375-382 ◽  
Author(s):  
J. A. Morrison ◽  
D. Patterson ◽  
J. S. Dugdale
Keyword(s):  
Sodium Chloride ◽  
Specific Heat ◽  
Temperature Region ◽  
Low Temperatures ◽  
Characteristic Temperature ◽  
Expansion Method ◽  
Adiabatic Calorimeter ◽  
Helium Gas ◽  
Carbon Resistor ◽  
Made In

A simple adiabatic calorimeter for specific heat measurements at very low temperatures is described. Liquid helium is made in the cryostat by the Simon expansion method. The calorimeter and adiabatic shield are cooled below 13°K. by conduction of heat along the lead wires rather than by conduction with exchange gas. The working thermometer is a carbon resistor which has been calibrated against a helium gas thermometer. The assembly has been used to determine the specific heat of rock salt between 2.5° and 20°K. The results are compared with the theoretically derived values of the specific heat and Debye characteristic temperature for sodium chloride.

High Magnetic Field Phases of the (TMTSF)2X (X = CLO4, PF6) Charge Transfer Complexes

1989 ◽  
Vol 173 ◽  
Author(s):  
J. S. Brooks ◽  
N. A. Fortune ◽  
P. M. Chaikin ◽  
L. Y. Chiang ◽  
G. Montambaux ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Charge Transfer ◽  
Magnetic Fields ◽  
Specific Heat ◽  
Low Temperatures ◽  
Density Wave ◽  
Spin Density Wave ◽  
Metallic State ◽  
Low Field ◽  
Fast Oscillations

ABSTRACTThe purpose of this talk is to discuss the physical properties of the (TMTSF)2X charge transfer salts in high magnetic fields. This class of materials is of great interest since the effective lower dimensionality and the various ground states are magnetic field dependent at low temperatures. At present, the so-called “standard model” provides a good theoretical description of the low field field induced spin density wave transitions (FISDW). However the reentrance from the last FISDW back to a high field metallic state, and the coexistence of “fast oscillations” in all measured properties, is yet to be accurately described theoretically. The emphasis of this paper is on recent specific heat results which have been obtained on (TMTSF)2ClO4 in magnetic fields as high as 30 T. Here we observe both the reentrant phase transition and the fast oscillations in the specific heat. A main conclusion we draw from our measurements is that the density of states in the reentrant phase is less than it is in the low field metallic state at low temperatures.

UPt 3 at Very Low Temperatures: Specific Heat in High Magnetic Fields

1990 ◽  
Vol 11 (3) ◽  
pp. 249-254 ◽  
Author(s):  
E Schuberth ◽  
G Hofmann ◽  
F Gross ◽  
K Andres ◽  
J Hufnagl
Keyword(s):  
Magnetic Fields ◽  
Specific Heat ◽  
Low Temperatures ◽  
High Magnetic Fields

Specific heat of pure and thoriatedUBe13at low temperatures in high magnetic fields

1989 ◽  
Vol 40 (13) ◽  
pp. 9358-9361 ◽  
Author(s):  
M. J. Graf ◽  
N. A. Fortune ◽  
J. S. Brooks ◽  
J. L. Smith ◽  
Z. Fisk
Keyword(s):  
Magnetic Fields ◽  
Specific Heat ◽  
Low Temperatures ◽  
High Magnetic Fields

Single crystal neutron diffraction studies of antiferromagnets at low temperatures in applied magnetic fields

1959 ◽  
Vol 20 (2-3) ◽  
pp. 180-184 ◽  
Author(s):  
W.C. Koehler ◽  
M. K. Wilkinson ◽  
J.W. Cable ◽  
E.O. Wollan
Keyword(s):  
Magnetic Fields ◽  
Neutron Diffraction ◽  
Single Crystal ◽  
Low Temperatures
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