Media type: E-Article Title: π bonding versus electronic-defect generation: An examination of band-gap properties in amorphous carbon Contributor: Stephan, U.; Frauenheim, Th.; Blaudeck, P.; Jungnickel, G. Published: American Physical Society (APS), 1994 Published in: Physical Review B, 50 (1994) 3, Seite 1489-1501 Language: English DOI: 10.1103/physrevb.50.1489 ISSN: 1095-3795; 0163-1829 Origination: Footnote: