I am starting to build multistage Peltier cooler at the moment, and it should be able to reach -100C at least (but if I fail I can always get boring LN2).
Doing some experiments with superconductors would be great, but where can I get superconductor samples or which one is easier to make on my own (have access to all chemicals & lab).
Especially awesome would be to be able to make thin superconductor film.
Any suggestions?
Answer
The owner of superconductors.org has a list of places to find HTSC superconductors, kits, and instructions.
You can also review the literature for recipes. HTSC producers usually publish successful and repeatable recipes in refereed journals, and some components are available commercially.
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