Self-Aligned Ballistic Molecular Transistors and Electrically Parallel   Nanotube Arrays
  Carbon nanotube field-effect transistors with structures and properties near the scaling limit with short (down to 50 nm) channels, self aligned geometries, palladium electrodes with low contact resistance and high-k dielectric gate insulators are realized. Electrical transport in these miniature transistors is near ballistic up to high biases at both room and low temperatures. Atomic layer deposited (ALD) high-k films interact with nanotube sidewalls via van der Waals interactions without causing weak localization at 4 K. New fundamental understanding of ballistic transport, optical phonon scattering and potential interfacial scattering mechanisms in nanotubes are obtained. 
Ali Javey, Jing Guo, Damon B. Farmer, Qian Wang, Erhan Yenilmez, Roy   G. Gordon, Mark Lundstrom, Hongjie Dai