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Lab on a Nanotip: Scientific and Technological Frontiers Using Metallic Nanotips with Radovan Urban
October 7, 2021 at 12:00 pm - 1:00 pm
Atomically sharp nanotips have been integral part of quantum mechanical research since 1920s.
This talk will cover fundamentals of field ion microscopy and nanotip fabrication using gas-and-field assisted etching method to create single atom tip (SAT) emitters.
The speaker will discuss:
- recent results using FIM to study nanoscale catalysis and generation of H+ (proton), H2+, and H3+ Beams from SAT, trimer
- hexamer tips, and
- point-projection electron holography and electron coherence and its implications for further studies of quantum mechanical effects of massive particles.
About the Speaker
Radovan Urban received his Master’s degree in Physics from Charles University in Prague, Czech Republic before moving to Canada. He obtained his PhD from Simon Fraser University in electron and spin transport in crystalline magnetic multilayers. He has moved to Caltech in Pasadena to pioneer development of magnetic resonance force microscopy technique to measure lateral distribution of magnetostatic modes in YIG films.
The need for well-defined tips brought him NRC in Edmonton where he spearheaded the nanotip research program in collaboration between NRC and University of Alberta. Over the last decade, Urban has dedicated himself to building theoretical and experimental foundation to investigate scientific and technological frontiers of atomically defined nanotips.