Wen, C.-Y.C.-Y.WenTersoff, J.J.TersoffReuter, M.C.M.C.ReuterStach, E.A.E.A.StachRoss, F.M.F.M.RossCHENG-YEN WEN2020-05-122020-05-122010https://scholars.lib.ntu.edu.tw/handle/123456789/491122Nanowire growth occurs by step flow at the wire-catalyst interface, with strikingly different step-flow kinetics for solid versus liquid catalysts. Here we report quantitative in situ measurements of step flow together with a kinetic model that reproduces the behavior. This allows us to identify the key parameters controlling step-flow growth, evaluate changes in the catalyst composition during growth, and identify the most favorable conditions for growing abrupt heterojunctions in nanowires.journal article10.1103/PhysRevLett.105.1955022-s2.0-78149261867https://www.scopus.com/inward/record.uri?eid=2-s2.0-78149261867&doi=10.1103%2fPhysRevLett.105.195502&partnerID=40&md5=f1fc2aaa150b29792fa656c2eb4dfed0