Ciro Santilli
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Superconducting tunnel junction (STJ) | 🗖 nosplit | ↑ parent "Condensed matter physics" | 80

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Specific type of Josephson junction. Probably can be made tiny and in huge numbers through photolithography.
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Figure 46. Illustration of a thin-film superconducting tunnel junction (STJ). Source. The superconducting material is light blue, the insulating tunnel barrier is black, and the substrate is green.
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Video 83. "Quantum Transport, Lecture 14: Josephson effects" by Sergey Frolov. Source. https://youtu.be/-HUVGWTfaSI?t=878 mentions maskless electron beam litograpy being used to produce STJs.
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