Abstract
In decelerating rotation, vortex lines annihilate in single-vortex events at the annihilation threshold where their number (Formula presented) is equal to or exceeds the equilibrium value (Formula presented). A surplus (Formula presented) may be stabilized by an energy barrier, which during deceleration vanishes in an instability. We find the barrier to depend on container misalignment in (Formula presented) and on the orbital texture in the container corners in (Formula presented). Measurements of the instability yield the circulation quantum of the vortex which is found to be consistent with the present identification of vortex structures in (Formula presented).
Original language | English |
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Pages (from-to) | 14089-14092 |
Number of pages | 4 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 56 |
Issue number | 21 |
DOIs | |
State | Published - 1997 |
Externally published | Yes |