Dann, M , Nyeki, J , Cowan, B P and Saunders, J (1999) Quasiparticle interactions in two-dimensional He-3 on He-4 films. Physical Review Letters, 82 (20).
Full text access: Open
Measurements are reported of the heat capacity of He-3 bound to an atomically layered He-4 film on the surface of graphite. At He-3 coverages n(3) < 4 nm(-2), the He-3 forms a uniform 2D Fermi system. Thereafter with increasing n(3) we resolve two steps in the heat capacity, each arising from the formation of a further 2D continuum built on excited surface-normal states. We infer information on the hydrodynamic mass, quasiparticle interactions, and energetics of these states. Both short range repulsive interactions and ripplon mediated quasiparticle interactions are important.
This is a Submitted version This version's date is: 17/5/1999 This item is not peer reviewed
https://repository.royalholloway.ac.uk/items/d41bd730-7dc6-9f0f-e4f4-bb4dc4c14f77/2/
Deposited by Research Information System (atira) on 31-May-2012 in Royal Holloway Research Online.Last modified on 31-May-2012