R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
Charge transport in 20-30-Å-thick Bi films is studied by scanning tunneling potentiometry at room temperature. Deposition at (Formula presented) K onto InP-based multilayer substrates leads to flat and continuous films that are subjected to a lateral current density of up to 8×(Formula presented) A/(Formula presented). We find that scattering at surface defects and grain boundaries gives rise to discontinuities in the local electrochemical potential. In particular, we observe dipole-shaped potential variations near small holes in the film. The influence of diffusive and ballistic transport on the formation of these dipoles is discussed. © 1996 The American Physical Society.
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Sharee J. McNab, Richard J. Blaikie
Materials Research Society Symposium - Proceedings
R. Ghez, J.S. Lew
Journal of Crystal Growth