Molecular-Beam Epitaxially Grown MgB₂ Thin Films and Superconducting Tunnel Junctions

Figure 11

Scanning electron microscopy images of possible thin film MgB₂ devices: (a) weak link created by Fe proximity effect; (b) superconducting quantum interference device geometry, where the two yellow dashed lines would be Josephson junctions.

(a)

(b)