High‐resolution scanning SQUID microscope

  title={High‐resolution scanning SQUID microscope},
  author={John R. Kirtley and Mark B. Ketchen and Kevin G. Stawiasz and Jonathan Z. Sun and William J. Gallagher and Susan Halloran Blanton and Shalom J. Wind},
  journal={Applied Physics Letters},
We have combined a novel low temperature positioning mechanism with a single‐chip miniature superconducting quantum interference device (SQUID) magnetometer to form an extremely sensitive new magnetic microscope, with a demonstrated spatial resolution of ∼10 μm. The design and operation of this scanning SQUID microscope will be described. The absolute calibration of this instrument with an ideal point source, a single vortex trapped in a superconducting film, will be presented, and a… 

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