RT info:eu-repo/semantics/article T1 Ultrafast generation of unconventional {001} loops in Si A1 Marqués Cuesta, Luis Alberto A1 Aboy Cebrián, María A1 Santos Tejido, Iván A1 López Martín, Pedro A1 Cristiano, Fuccio A1 La Magna, Antonino A1 Huet, Karim A1 Tabata, Toshiyuki A1 Pelaz Montes, María Lourdes K1 Laser annealing K1 Molecular dynamics K1 Láser K1 Dinámica molecular AB Ultra-fast laser annealing of ion implanted Si has led to thermodynamically unexpected large {001} self-interstitial loops, and the failure of Ostwald ripening models for describing self-interstitial cluster growth. We have carried out molecular dynamics simulations in combination with focused experiments in order to demonstrate that at temperatures close to the melting point, self-interstitial rich Si is driven into dense liquid-like droplets that are highly mobile within the solid crystalline Si matrix. These liquid droplets grow by a coalescence mechanism and eventually transform into {001} loops through a liquid-to-solid phase transition in the nanosecond timescale. PB American Physical Society SN 0031-9007 YR 2017 FD 2017 LK http://uvadoc.uva.es/handle/10324/28070 UL http://uvadoc.uva.es/handle/10324/28070 LA eng NO Physical Review Letters Vol. 119, Iss. 20, 2017 NO Producción Científica DS UVaDOC RD 26-nov-2024