Physical Review B
The dynamics of the Ge(111)-c(2×8)-(1×1) phase transition is investigated by 100-ps time-resolved reflection high-energy electron diffraction. A laser pulse heats the surface while a synchronized electron pulse is used to obtain the surface diffraction pattern. Slow heating shows that the adatoms in Ge(111)-c(2×8) start to disorder at ∼510 K and are converted to a disordered adatom arrangement at 573 K. For heating with 100-ps laser pulses, the Ge(111)-c(2×8) reconstructed adatom arrangement starts to disorder at 584±16K, well above the onset temperature of ∼510 K for the disordering of Ge(111)-c(2×8) observed for slow heating. © 1999 The American Physical Society.
Original Publication Citation
Zeng, X., Lin, B., El-Kholy, I., & Elsayed-Ali, H. E. (1999). Time-resolved reflection high-energy electron diffraction study of the Ge(111)-c(2×8)-(1×1) phase transition. Physical Review B, 59(23), 14907-14910. doi:10.1103/PhysRevB.59.14907
Zeng, Xinglin; Lin, Bo; El-Kholy, Ibrahim; and Elsayed-Ali, Hani E., "Time-Resolved Reflection High-Energy Electron Diffraction Study of the Ge(111)-c(2×8)-(1×1) Phase Transition" (1999). Electrical & Computer Engineering Faculty Publications. 109.