Absence of low temperature anomaly on the melting curve of ${}^4$He

I. A. Todoshchenko, H. Alles, H. J. Junes +2

We have measured the melting pressure and pressure in the liquid at constant density of ultra-pure ${}^4$He (0.3 ppb of ${}^3$He impurities) with the accuracy of about 0.5 $\mu$bar in th…