Abstract
The deviation of the He3 quasiparticle spectrum from the Landau-Pomeranchuk parabolic form, seen in neutron scattering, is shown to be accounted for by including the process of roton emission by He3 quasiparticles in a self-consistent calculation. The normal-fluid density and second-sound velocity (as functions of temperature and concentration of He3), calculated from this spectrum (which exhibits no He3 roton minimum) with no adjustable parameters, are in agreement with experiment.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2108-2115 |
| Number of pages | 8 |
| Journal | Physical Review B |
| Volume | 18 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1978 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics