RT Journal Article
T1 Magnetic pinning of flux lattice in superconducting- nanomagnet hybrids
A1 Pérez de Lara, David
A1 Castaño, F. J.
A1 Ng, B. G.
A1 Körner, H. S.
A1 Dumas, R. K.
A1 González Herrera, Elvira María
A1 Liu, Kai
A1 Ross, , C. A.
A1 Schuller, Ivan K.
A1 Vicent López, José Luis
AB Strong superconducting pinning effects are observed from magnetic landscapes produced by arrays of circular rings with varying magnetic remanent states. The collective and the background pinning of superconducting Nb films is strongly enhanced by the stray magnetic field produced by an array of circular Ni rings magnetized to form “onion” (bidomain) states. On the other hand, when the same rings are magnetized into vortex (flux-closed) states, or are randomly magnetized, the superconducting pinning is much smaller. The greatest pinning is produced when the superconducting vortex lattice motion is along a direction in which there is a strong magnetic field variation.
PB American Institute of Physics
SN 0003-6951
YR 2011
FD 2011-10-31
LK https://hdl.handle.net/20.500.14352/42674
UL https://hdl.handle.net/20.500.14352/42674
LA eng
NO ©2011 American Institute of Physics.Work supported by Spanish MCINN Grant No. FIS2008- 06249, Consolider CSD2007-00010, CM Grant No. S2009/ MAT-1726, and Santander-UCM Grant No. GR35/10-A- 910571. Research at UCSD was funded by the US-NSF and at UC-Davis by US NSF (DMR-1008791). CAR gratefully acknowledges support from the Singapore-MIT Alliance and the assistance of Moyukh Chatterjee in modeling. We thank Y. Rosen for a critical reading of the manuscript.
NO Ministerio de Ciencia e Innovación (MICINN)
NO Comunidad de Madrid
NO Consolider
NO Universidad Complutense de Madrid/Banco de Santander
NO US-NSF
DS Docta Complutense
RD 26 sept 2024