Gradients of Be-dopant concentration in self-catalyzed GaAs nanowires - Piton, Marcelo Rizzo; Koivusalo, Eero; Hakkarainen, Teemu; Galeti, Helder Vinícius Avanço; Rodrigues, Ariano de Giovanni; Talmila, Soile; Souto, Sérgio Paulo Amaral; Lupo, Donald; Gobato, Yara Galvao; Guina, Mircea (Nanotechnology, 2019)