Research highlights (to be updated) |
In situ TEM (Ge nanowires) (Work done with Jerry Tersoff, Mark Reuter, Frances Ross at IBM T.J. Watson Research Center) * Ge nanowires can grow with both solid and liquid catalysts. * AuGe catalyst exists as liquid below the bulk eutectic temperature. * Catalyst state (liquid/solid) depends on the Ge flux during VLS growth. |
In situ microscopy labs |
In situ TEM (Si nanowires) (Work done with Frances Ross, Jim Hannon, Ruud Tromp at IBM T.J. Watson Research Center) |
In situ LEEM (TiN(111) spiral step dynamics 1400-1700K) (Work done with Wacek Swiech, Sanjay V. Khare, Kenji Ohmori, Ivan Petrov, Joe Greene at University of Illinois) * Steps terminating at a dislocation core grow in the absence of any external flux. * Occurs via transport of point defects between the bulk and the surface. |
In situ STM (2D TiN island dynamics 1000-1250K) (Work done with Vania Petrova, Sanjay V. Khare, Arturas Vailionis, Ivan Petrov, Joe Greene at University of Illinois) |