Temperature dependence of the density of 4He in narrow gaps near the λ -point
Panov V. I., Sobyanin A. A.
Quantitative measurements have been carried out on the temperature dependence of the density of liquid 4He near theA-point in a thin parallel-plane gap with a well-controlled geometry and a thickness g?~ 3.3 X 10~5 cm. The results are compared with theoretical predictions.