Identification of single-layer metallic structure of indium on Si(1 1 1)
- 16 August 2018
- journal article
- research article
- Published by IOP Publishing in Journal of Physics: Condensed Matter
- Vol. 30 (36) , 365002
Abstract
We have studied the In/Si(1 1 1) ( )-hex and striped phases by low-energy electron diffraction (LEED) and angle-resolved photoelectron spectroscopy (ARPES). The two phases are formed by different processes, and hence the different names have been used conventionally. We, however, found that LEED I – curves of the two phases agree with each other, indicating that they have an identical atomic structure. Our ARPES measurement revealed that the ( )-hex phase has metallic surface states. The observed Fermi surface was found to be very similar to the theoretical one calculated for an indium single-layer model.Keywords
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