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PUBLICATIONS

Ferryl (Fe=O) Termination of the Hematite a-Fe2O3(0001) Surface

Published

Author(s)

C Lemire, S Bertarione, A Zechina, D Scarano, Anne M. Chaka, H J. Freund

Abstract

Using scanning tunnelling microscopy and infrared reflection absorption spectroscopy we have observed that the alpha-Fe2O3(0001) surface unexpectedly exhibits ferryl (Fe=O) groups, which may coexist with domains of the Fe-terminated surface. The ab initio calculations fully support the experimental results. The close similarity to the results on the (0001) surfaces of Cr2O3 and V2O3 strongly suggest that the M=O termination under certain oxygen pressure conditions is the most stable for the close-packed surfaces of transition metal oxides with the corundum structure.
Citation
Physical Review Letters
Volume
94 No 166101
Pub Type
Journals

Keywords

ab initio, ferryl, hematite surfaces, scanning tunnelling microscopy

Citation

Lemire, C. , Bertarione, S. , Zechina, A. , Scarano, D. , Chaka, A. and Freund, H. (2005), Ferryl (Fe=O) Termination of the Hematite a-Fe2O3(0001) Surface, Physical Review Letters (Accessed June 3, 2023)

Created February 28, 2005, Updated October 12, 2021