Integration, gap formation, and sharpening of III-V heterostructure nanowires by selective etching. - Kallesøe, Christian; Mølhave, Kristian; Larsen, Kasper F.; Engstrøm, Daniel; Hansen, Torben M.; Bøggild, Peter; Mårtensson, Thomas; Borgström, Magnus; Samuelson, Lars (Journal of Vacuum Science & Technology: Part B-Nanotechnology & Microelectronics, 2010)