Despite its name, high-temperature superconductivity
still occurs at cryogenic
temperatures. The main difference from low-temperature superconductivity
is usually that 'high-Tc' superconductors can use liquid nitrogen
) as a coolant while low-temperature superconductors
always need liquid helium
) temperatures and below.
Most prominent materials in the high-Tc range are the so-called cuprates, i.e. YBCO (Yttrium-Barium-Copper-Oxide) and related substances.
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