Molecular computer graphic showing the crystal structure of one of the new generation of high- temperature superconductors - yttrium-barium- copper oxide (Y-Ba2-Cu3-O7-x). Discovered in 1987,the new superconducting ceramic materials are expected to lead to a technological revolution,& are the subject of intensive worldwide research. The picture highlights the square-pyramidal (red) and square-planar (green) coordination of copper by oxygen ions in this orthorhombic structure. Yttrium ions are the yellow spheres,and barium ions the blue spheres. (Further information in Nature,28 May 1987,page 310) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chemical Design |
Bildgröße: | 4427 px × 4028 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |