Abstract
The phase diagram of quantized vortices in - has been obtained with two techniques. Our NMR measurements show that magnetization displays a pressure-dependent first-order phase change at . Our gyroscopic experiments reveal a transition curve which marks an abrupt change in the critical velocity. Both curves show a weak magnetic field dependence, run similarly in the (, ) plane, and seem to mark the same vortex-core transition.
- Received 13 June 1984
DOI:https://doi.org/10.1103/PhysRevLett.53.584
©1984 American Physical Society