Atomic and Electronic-Band Structures of Anomalous Carbon Dimers on3C−SiC(001)−c(2×2)

Autor:	Han Woong Yeom, Charles S. Fadley, S. Hara, Bongjin Simon Mun, Kensuke Tono, Shozo Kono, T. Ohta, J. Kitamura, Iwao Matsuda, Masatsugu Shimomura, K. Kajimura, Sadafumi Yoshida, W. A. R. Huff, H. Okushi
Rok vydání:	1999
Předmět:	Materials science General Physics and Astronomy Electronic structure Electron spectroscopy law.invention Bond length Crystallography Atomic orbital X-ray photoelectron spectroscopy Electron diffraction law Atomic physics Scanning tunneling microscope Surface reconstruction
Zdroj:	Physical Review Letters. 83:1640-1643
ISSN:	1079-7114 0031-9007
DOI:	10.1103/physrevlett.83.1640
Popis:	The atomic structure of the c(2[times]2) reconstruction of the C -terminated 3C-SiC(001) surface was unambiguously determined by scanning tunneling microscopy and surface-core-level-resolved photoelectron diffraction studies. This surface is found to uniquely and uniformly consist of anomalous bridge-bonded C dimers with a C-C bond length of 1.22thinspthinsp[Angstrom]. Furthermore, an extensive angle-resolved photoemission study clearly identifies two occupied [pi] state bands due to the surface-normal and -parallel [pi] orbitals of the [ital triple-bonded] C dimers. This provides an electronic explanation of the stability of this unique surface reconstruction. [copyright] [ital 1999] [ital The American Physical Society]
Databáze:	OpenAIRE
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