Structure of the high temperature superconductor
YBa2Cu3O7,
rendered by POV-Ray.
The corresponding source code can be downloaded here.
The high temperature superconductor
YBa2Cu3O7 was discovered in 1987
by M. K. Wu et al. as the first superconductor with a transition temperature
above the boiling point of liquid nitrogen (77 K).
(M.K. Wu et al. , Phys. Rev. Lett. 58 , 908 (1987))
| Transition temperature: | Tc = 92 K |
| Crystalline structure: | Orthorombic |
| Lattice constants: | a = 3.8231 Å, b = 3.8864 Å, c = 11.6807 Å |
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Typical transition curve (resistance vs. temperature) for a YBa2Cu3O7 thin-film. The resistance drops to zero at about T=90 K.