Reflection high-energy electron diffraction oscillations modulated by laser-pulse deposited YBa2Cu3O7-x.
Reflection high-energy electron diffraction oscillations during pulsed laser ablation of YBa 2 Cu 3 O 7-x on SrTiO 3 (100) substrates were measured. We have found for the first time that the oscillations are modulated by the laser-pulse repetition frequency. Each laser pulse deposits 0.14 nm of material. This causes the specularly reflected intensity to decrease instantaneously, but then it increases exponentially due to crystallization