Is it possibly to make a superconductor at home ? I mean with limited funds and ... you know. Maybe this idea is a bit crazy but I'd like to know.
ZapperZ said:I would HIGHLY recommend that you do NOT even attempt to make such compounds. ALL the high-Tc cuprates consist of at least ONE extremely toxic element (Y, Ba, Tl, Hg, etc).
Gokul43201 said:However, I don't think it's as hard to get the doping levels right. This is just a matter of correctly calculating weight ratios and having a fairly sensitive balance.
ZapperZ said:No, I don't mean the doping level in terms of the proportions of the various elements. I mean the "hole doping" content. When you synthesized the cuprate out of the furnace, you first make the insulating parent compound (the Mott insulator). This isn't a superconductor (it isn't even a "good" conductor). For hole doped cuprates, you have to anneal it in oxygen just with the right pressure, and length of time, to get it to optimum doping where Tc is the highest. If you annealed it too little, you are underdoped and you run into the pseudogap states and encounter a bunch of issues. If you annealed it too much, you overdoped the material and Tc drops again (my avatar is the ARPES spectra of a highly overdoped Bi2212 cuprate).
So "doping" here is the hole content (or electron content for electron-doped cuprates).