Proposed short tube of high-temperature-superconducting material like YBa2Cu3O7 acts as strong electromagnet that flows as long as magnetic field remains below critical value and temperature of cylinder maintained sufficiently below superconducting-transition temperature. Design exploits maximally anisotropy of high-temperature-superconducting material.
Simple Superconducting "Permanent" Electromagnet
NASA Tech Briefs ; 16 , 6
01.06.1992
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Englisch