Formation of a glass phase in solid He4. Contribution to the pressure in the supersolid region

High-precision barometry is used to perform measurements of the temperature dependence of the pressure of helium crystals, located in a constant volume, in the temperature range 50–800mK on crystals of different quality ranging from freshly prepared to carefully annealed. It is found that an additio...

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Bibliographic Details
Published in:Low temperature physics (Woodbury, N.Y.) N.Y.), 2008-04, Vol.34 (4), p.344-350
Main Authors: Grigor’ev, V. N., Maĭdanov, V. A., Rubanskiĭ, V. Yu, Rubets, S. P., Rudavskiĭ, É. Ya, Rybalko, A. S., Tikhiĭ, V. A.
Format: Article
Language:English
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Summary:High-precision barometry is used to perform measurements of the temperature dependence of the pressure of helium crystals, located in a constant volume, in the temperature range 50–800mK on crystals of different quality ranging from freshly prepared to carefully annealed. It is found that an additional contribution to the pressure, proportional to T2, appears in on annealed samples. This contribution becomes dominant at T
ISSN:1063-777X
1090-6517
DOI:10.1063/1.2911653