Transition between Nonsingular Vortices in Superfluid 3He-A at Zero Magnetic field
Torizuka К., Pekola J.P., Manninen A.J., Volovik G.E.
Rotating 3iJe-A in zero magnetic field exhibits a new first order phase transition, discovered by ultrasonic measurements at high angular velocity Qc 3 rad/s. A possible mechanism of the observed phase change, related to the surface vortex layer, is discussed.