Abstrakti
The Kelvin-Helmholtz instability is well known in classical hydrodynamics where it explains the sudden emergence of interfacial surface waves as a function of the flow velocity parallel to the interface. It can be carried over to the inviscid two-fluid dynamics of superfluids, to describe the stability of the phase boundary separating two bulk phases of superfluid He3 in rotating flow when the boundary is localized with a magnetic-field gradient. The results from extensive measurements as a function of temperature and pressure confirm that in the superfluid the classic condition for stability is changed and that the magnetic polarization of the B phase at the phase boundary has to be taken into account, which yields the magnetic-field-dependent interfacial surface tension.
Alkuperäiskieli | Englanti |
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Artikkeli | 054104 |
Sivut | 1-14 |
Julkaisu | Physical Review B |
Vuosikerta | 99 |
Numero | 5 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 11 helmik. 2019 |
OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Sormenjälki
Sukella tutkimusaiheisiin 'Kelvin-Helmholtz instability of AB interface in superfluid He 3'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Laitteet
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OtaNano – Kylmälaboratorio
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNanoLaitteistot/tilat: Facility