The specific heat capacity tends towards infinity as the temperature approaches the lambda point.
2.
Second sound is also observed in superfluid helium-3 below its lambda point 2.5 mK.
3.
Helium-4 is a special case that presents a triple point involving two different fluid phases ( lambda point ).
4.
This model states that there will be two components in liquid helium below its lambda point ( the temperature where superfluid forms ).
5.
Superfluids, such as helium-4 below the lambda point, exhibit many unusual properties . ( See Helium # Helium II state ).
6.
The helium vessel is often pumped to a pressure below helium's superfluid lambda point to take advantage of the superfluid's thermal properties.
7.
For some time it looked as if it would be impossible to cool below the lambda point of 4 He ( 2.17 K ), but the Low-Temperature group of the Eindhoven University of Technology managed to cool to a temperature of 1.73 K by replacing the usual 4 He as refrigerant by its rare isotope 3 He.
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