We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Absence of low-temperature anomaly on the melti...
View graph of relations

« Back

Absence of low-temperature anomaly on the melting curve of He-4.

Research output: Contribution to journalJournal article


  • Igor A. Todoshchenko
  • Harry Alles
  • Heikko J. Junes
  • Alexander Y. Parshin
  • Viktor Tsepelin
Journal publication date07/2007
JournalJETP Letters
Number of pages4
Original languageEnglish


The melting pressure and pressure in the liquid at a constant density of ultrapure He-4 (0.3 ppb of He-3 impurities) have been measured with an accuracy of about 0.5 mu bar in the temperature range from 10 to 320 mK. The measurements show that the anomaly on the melting curve below 80 mK, which was recently observed [I. A. Todoshchenko et al., Phys. Rev. Lett. 97, 165302 (2006)], is entirely due to an anomaly in the elastic modulus of Be-Cu from which our pressure gauge is made. Thus, the melting pressure of He-4 follows the T-4 law due to phonons in the whole temperature range from 10 to 320 mK without any attribute of a supersolid transition.