Lanthanum barium copper oxide

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Lanthanum barium copper oxide
LBCO unit cell
The unit cell of the layered perovskite structure of LBCO. Copper ions are red, lanthanum (barium) ions are blue, and oxygen ions are green.
3D model (JSmol)
  • InChI=1S/2Ba.3Cu.La.7O/q5*+2;+3;7*-2
  • [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Cu+2].[Cu+2].[Cu+2].[Ba+2].[Ba+2].[La+3]
Molar mass 716.190 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Lanthanum barium copper oxide, or LBCO, was discovered in 1986 and was the first high temperature superconductor.[1] Johannes Georg Bednorz and K. Alex Müller shared the 1987 Nobel Prize in physics for its discovery.[2]


  1. ^ J. G. Bednorz and K. A. Müller (1986). "Possible high Tc superconductivity in the Ba−La−Cu−O system". Z. Phys. B. 64 (1): 189–193. Bibcode:1986ZPhyB..64..189B. doi:10.1007/BF01303701. S2CID 118314311.
  2. ^ Hazen, Robert M. (1988). The breakthrough : the race for the superconductor. New York: Summit Books. p. 255. ISBN 978-0671658298.