Effect of pressure on statics, dynamics, and stability of multielectron bubbles.
The effect of positive and negative pressure on the modes of oscillation of a multielectron bubble in liquid helium is calculated. Already at low pressures of the order of 10-100 mbar, these effects are found to significantly modify the frequencies of oscillation of the bubble. Stabilization of the bubble is shown to occur in the presence of a small negative pressure, which expands the bubble radius. Above a threshold negative pressure, the bubble is unstable.
Tempere
J
J
Department of Physics, Harvard University, 14-A Oxford Street, Cambridge, Massachusetts 02139, USA.
Silvera
I F
IF
Devreese
J T
JT