228 citations · 670 across the 8 of their papers we have counts for
8 papers
Dry demagnetization cryostat for sub-millikelvin helium experiments: refrigeration and thermometry
I. Todoshchenko, J. -P. Kaikkonen, R. Blaauwgeers +2
We demonstrate successful "dry" refrigeration of quantum fluids down to \,mK by using copper nuclear demagnetization stage that is pre-cooled by a pulse-tube-based dilution…
Quartz Tuning Fork: Thermometer, Pressure- and Viscometer for Helium Liquids
R. Blaauwgeers, M. Blazkova, M. Clovecko +10
Commercial quartz oscillators of the tuning-fork type with a resonant frequency of ~32 kHz have been investigated in helium liquids. The oscillators are found to have at best Q val…
Onset of turbulence in superfluid 3He-B and its dependence on vortex injection in applied flow
A. P. Finne, R. Blaauwgeers, S. Boldarev +3
Vortex dynamics in 3He-B is divided by the temperature dependent damping into a high-temperature regime, where the number of vortices is conserved, and a low-temperature regime, wh…
Transition to superfluid turbulence governed by an intrinsic parameter
A. P. Finne, T. Araki, R. Blaauwgeers +6
Hydrodynamic flow in both classical and quantum fluids can be either laminar or turbulent. To describe the latter, vortices in turbulent flow are modelled with stable vortex filame…
Structure of surface vortex sheet between two rotating 3He superfluids
R. Hänninen, R. Blaauwgeers, V. B. Eltsov +4
We study a two-phase sample of superfluid 3He where vorticity exists in one phase (3He-A) but cannot penetrate across the interfacial boundary to a second coherent phase (3He-B). W…
Shear flow and Kelvin-Helmholtz instability in superfluids
R. Blaauwgeers, V. B. Eltsov, G. Eska +6
The first realization of instabilities in the shear flow between two superfluids is examined. The interface separating the A and B phases of superfluid He-3 is magnetically stabili…