Mechanical control of individual superconducting vortices


  Anna Kremen [1]  ,  Shai Wissberg [1]  ,  Noam Haham [1]  ,  Yiftach Frenkel [1]  ,  Beena Kalisky [1]  
[1] Bar-Ilan University, Department of Physics and Institute of Nanotechnology and Advanced Materials, Ramat-Gan, Israel.

We use scanning Superconducting Quantum Interference Device (SQUID) microscopy to examine the interaction between vortices and local mechanical stress. We show how we moved vortices in thin superconducting films by local mechanical contact, without magnetic field or current. Vortices were attracted to the contact point, relocated, and were stable at their new location. Mechanical manipulation of vortices provides a local view of the interaction between strain and nanomagnetic objects as well as controllable, effective, and reproducible manipulation technique.