Abb. 2: Schichtstruktur von Natriumkobaltoxid. Schichten aus Natriumatomen (Blau oder Rot) wechseln sich mit solchen aus Kobalt und Sauerstoff ab. Die Sauerstoffatome sind nicht gezeigt. Sie sind in den gleichen Schichten angeordnet wie die in Gold, Silber und Bronze dargestellten Kobaltatome. Die Kobaltoxid-Schicht ist nicht eben, sondern leicht verbogen. Die verschiedenen Farben deuten an, wie die Lage der einzelnen Atome von der Idealebene abweicht.
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