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	▲	gavinray 41 minutes ago
		`> "a single layer of Bi2Sr2CuO6+δ (Bi-2201)"` I did not realize one could learn how much chemistry they did not know from a single name. "+δ" is one I've never seen before.
	▲	oliculipolicula 4 minutes ago \| parent [-]
		https://condensedconcepts.blogspot.com/2012/05/characteristi...