Quantum size effects in nanoscale metallic structures
Dongmin Chen
Yamada, T.
Rowland Inst. at Harvard, Harvard Univ., Cambridge, MA, USA;
This paper appears in: Nanotechnology, 2003. IEEE-NANO 2003. 2003 Third IEEE Conference on
Publication Date: 12-14 Aug. 2003
Volume: 1,
On page(s): 52- 55 vol.2
ISSN:
ISBN: 0-7803-7976-4
INSPEC Accession Number: 7824595
Digital Object Identifier: 10.1109/NANO.2003.1231712
Posted online: 2003-09-15 15:35:53.0
Abstract
Spatial confinement of electrons in a nanoscale metallic structure gives rise to a set of standing wave states and quantized energy spectra. The quantized nature of the electrons and the enhanced boundary scattering could seriously affect the electron transport in future nanoscale interconnects. As revealed by scanning tunnelling microscopy, such quantum size effect also plays a competing role along side the classical thermodynamic effect in the shape relaxation of a metallic nanostructure. In particular, it leads to very unusual mass transport behaviours. Like the electron migration, such effect may have significant impact on the stability of nanoscale metal interconnects.
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