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APS » Journals » Phys. Rev. Lett. » Volume 80 » Issue 15
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Phys. Rev. Lett. 80, 3332–3335 (1998)

Electron Confinement to Nanoscale Ag Islands on Ag(111): A Quantitative Study

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Jiutao Li* and Wolf-Dieter Schneider
Institut de Physique Expérimentale, Université de Lausanne, CH-1015 Lausanne, Switzerland

Richard Berndt
Physikalisches Institut, RWTH Aachen, D-52056 Aachen, Germany

S. Crampin
Department of Physics, University of Bath, BA2 7AY, United Kingdom

Received 9 October 1997; published in the issue dated 13 April 1998

Lateral confinement has been suggested as a possible mechanism for depopulation of surface state levels and concomitant modification of metal surface related properties. Studies to date give conflicting accounts of the effectiveness of confinement due to scattering at step edges. We present a quantitative study of surface states on nanoscale Ag islands on Ag(111), using low-temperature scanning tunneling microscopy and electronic structure calculations. These results confirm the validity of the confinement picture down to the smallest of island sizes.

© 1998 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.3332
DOI:
10.1103/PhysRevLett.80.3332
PACS:
73.20.At, 61.16.Ch, 73.20.Dx, 72.10.Fk

*Present address: Dept. of Electrical and Computer Engineering, Univ. of Illinois at Urbana-Champaign, 3025 Beckman Institute, Urbana, IL 61801.

 
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