Onset of plastic relaxation in the growth of Ge on Si(001) at low temperatures: Atomic-scale microscopy and dislocation modeling. - Marzegalli, Anna; Brunetto, Matteo; Salvalaglio, Marco; Montalenti, Francesco; Nicotra, Giuseppe; Scuderi, Mario; Spinella, Corrado; De Seta, Monica; Capellini, Giovanni (Physical Review B: Condensed Matter & Materials Physics, 2013)