The Si(1 0 0) surface has been studied by synchrotron radiation valence band photoemission as a function of temperature starting from the room temperature (2×1) reconstructed surface up to 1660 K. The analysis of the emission intensity at the Fermi level reveals that the surface acquires increasing metallic character as the temperature is raised. A sign of a possible break up of the dimer structure has been detected at 1485 K and associated, in accordance with Metois and Heyraud, with the disruption of the (2×1) reconstruction. A further transition has been observed at 1610 K, which could be indicative of surface melting.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry
Santoni, A., Dhanak, V. R., Grill, L., & Petaccia, L. (2001). High-temperature phase transitions on the Si(1 0 0) surface monitored by photoemission spectroscopy. Surface Science, 474(1-3), -. https://doi.org/10.1016/S0039-6028(00)01105-5