Reference : Symmetry-Induced Giant Vortex State in a Superconducting Pb Film with a Fivefold Penrose...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/102367
Symmetry-Induced Giant Vortex State in a Superconducting Pb Film with a Fivefold Penrose Array of Magnetic Pinning Centers
English
Kramer, R. B. G. [> > > >]
Silhanek, Alejandro mailto [Katholieke Universiteit Leuven - KUL > > > >]
Van de Vondel, J. [> > > >]
Raes, B. [> > > >]
Moshchalkov, V. V. [> >]
2009
Physical Review Letters
American Physical Society
103
6
Yes (verified by ORBi)
International
0031-9007
1079-7114
Ridge
NY
[en] superconductivity
[en] A direct visualization of the flux distribution in a Pb film covering a fivefold Penrose array of Co dots is obtained by mapping the local field distribution with a scanning Hall probe microscope. We demonstrate that stable vortex configurations can be found for fields H similar to 0.8H(1), H(1), and 1.6H(1), where H(1) corresponds to one flux quantum per pinning site. The vortex pattern at 0.8H(1) corresponds to one vacancy in one of the vertices of the thin tiles, whereas at 1.6H(1) the vortex structure can be associated with one interstitial vortex inside each thick tile. Strikingly, for H=1.6H(1), interstitial and pinned vortices arrange themselves in ringlike structures ("vortex corrals") which favor the formation of a giant vortex state at their center.
Researchers
http://hdl.handle.net/2268/102367
10.1103/PhysRevLett.103.067007

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