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Science 12 July 1991:
Vol. 253. no. 5018, pp. 429 - 433
DOI: 10.1126/science.253.5018.429
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Articles

Order and Disorder in C60 and KxC60 Multilayers: Direct Imaging with Scanning Tunneling Microscopy

Y. Z. LI 1, M. CHANDER 1, J. C. PATRIN 1, J. H. WEAVER 1, L. P. F. CHIBANTE 2, and R. E. SMALLEY 2

1 Department of Materials Science and Chemical Engineering, University of Minnesota, Minneapolis, MN 55455
2 Rice Quantum Institute and Departments of Chemistry and Physics, Rice University, Houston, TX 77251

Monolayer and multilayer structures of C60, a high temperature van der Waals solid, have been studied with scanning tunneling microscopy. Structures grown on GaAs(110) at 300 kelvin and at elevated temperatures show significantly different morphologies because of balances between thermodynamics and kinetics. Condensation onto stepped surfaces demonstrates preferred bonding and nucleation at step edges. Detailed studies of potassium incorporation in crystalline C60 show highly ordered structures in the K3C60 metallic state but disordered non-metallic structures for high potassium concentrations.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Formation of Fullerides and Fullerene-Based Heterostructures.
D. M. POIRIER, T. R. OHNO, G. H. KROLL, Y. CHEN, P. J. BENNING, J. H. WEAVER, L. P.F. CHIBANTE, and R. E. SMALLEY (1991)
Science 253, 646-648
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)