title: Structure of the surface vortex sheet between two rotating 3He superfluids.
abstract: 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). We calculate the bending of the vorticity into a surface vortex sheet on the interface and solve the internal structure of this new type of vortex sheet. The compression of the vorticity from three to two dimensions enforces a structure which is made up of 1 / 2-quantum units, independently of the structure of the source vorticity in the bulk. These results are consistent with our NMR measurements.
authors.affiliation: Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT, Finland.
authors.forename: R
authors.initials: R
authors.lastname: Hänninen
authors.forename: R
authors.initials: R
authors.lastname: Blaauwgeers
authors.forename: V B
authors.initials: VB
authors.lastname: Eltsov
authors.forename: A P
authors.initials: AP
authors.lastname: Finne
authors.forename: M
authors.initials: M
authors.lastname: Krusius
authors.forename: E V
authors.initials: EV
authors.lastname: Thuneberg
authors.forename: G E
authors.initials: GE
authors.lastname: Volovik