The unusual properties of anisotropic systems of quasiparticles in superfluid ⁴He
| Autor: | Adamenko, I.N., Nemchenko, K.E., Slipko, V.A., Wyatt, A.F.G. |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Condensed Matter::Materials Science
Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Condensed Matter::Mesoscopic Systems and Quantum Hall Effect |
| Popis: | We discuss a number of unusual phenomena, which have been discovered recently in anisotropic quasiparticle systems in superfluid ⁴He. These include the creation of high-energy phonons by a pulse of low-energy phonons, the suprathermal distribution of high-energy phonons in long phonon pulses, the mesa shape of the angular distribution of low-energy phonons, the creation of a «hot line» when two-phonon pulses cross. The thermodynamic properties of anisotropic quasiparticle systems of He II are derived for all degrees of anisotropy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|