Melting curve of ${}^4$He: no sign of the supersolid transition down to 10 mK

I. A. Todoshchenko, H. Alles, J. Bueno +3

We have measured the melting curve of ${}^4$He in the temperature range from 10 to 400 mK with the accuracy of about 0.5 $\mu$bar. Crystals of different quality show the expected $T^4$…