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The Principles of Thermodynamics
book

The Principles of Thermodynamics

by N.D. Hari Dass
October 2013
Intermediate to advanced content levelIntermediate to advanced
352 pages
13h 56m
English
CRC Press
Content preview from The Principles of Thermodynamics
Approach to Absolute Zero 295
14.4.5 Cascade nuclear demagnetization
The race to the proximity of absolute zero is really like a relay race. For example,
in the case of paramagnetic adiabatic demagnetization one rst used a helium bath
to cool to 1.2 K, which at one time was the lowest temperature achievable, and then
achieve mK temperature ranges.
Extending this concept, Knuuttila and coworkers [16] of the
μ
KI (microkelvin in-
vestigations) group of the Lounasmaa lab at Helsinki, reached the lowest temperature
ever in a Rhodium sample. In the rst stage they used dilution refrigeration to reach
3 mK range. Then in the next stage they used adiabatic
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Publisher Resources

ISBN: 9781466512085