ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The specific heat of4He condensed on an evaporated gold surface has been measured for coverages between 0.007 and 0.096 Å−2 and temperatures between 0.4 and 3.0 K. There are at least two types of physisorption site on the gold surface with binding energies −83±7 and −94±7 K. For coverages below 0.06 Å−2 (∼0.5 monolayers), the4He is a two-dimensional classical gas at sufficiently high temperatures. At lower temperatures and higher coverages, the4He forms condensed phases, including liquids, solids commensurate with the gold lattice, and incommensurate solids. The phase diagram of4He/evaporated gold is similar to that for4He/graphite, but the phase boundaries are shifted and not well defined, nor is the diagram as rich in structure.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02396735
