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Electron confinement in surface states on a stepped gold surface revealed by angle-resolved photoemission
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2001, 87 (10), E-Prints Complutense. Archivo Institucional de la UCM, instname, Scopus-Elsevier, Digital.CSIC. Repositorio Institucional del CSIC, E-Prints Complutense: Archivo Institucional de la UCM, Universidad Complutense de Madrid
- Publication Year :
- 2001
- Publisher :
- American Physical Society, 2001.
-
Abstract
- STM images show that vicinal Au(788) surfaces are made up of a uniform array of (111)-oriented terraces of similar width (∼3.8nm). This uniformity makes it possible to study the electronic structure of the resulting step superlattice by angle-resolved photoemission. We show that for this terrace array the surface state appears to be broken up into one-dimensional quantum-well levels, indicating total electron confinement within the terraces. The angular resolution allows the probability density of the terrace quantum well state to be mapped in reciprocal space, complementing nicely the wave function measured in real space by STM.<br />A. Mu., F. J. G. de A., and J. E. O. are supported by the Universidad del País Vasco (1/UPV/EHU/00057.240-EA8078/2000) and the Max Planck Research Award Program. V. R. and S. R. are supported by the CNRS-ULTIMATECH program, the CRIF, and the Université de Paris 7. A. Ma. is supported by a Marie Curie Fellowship of the European Union, under Contract No. HPMF-CT-2000-00565. V. P.-D. is supported by the Comunidad Autónoma de Madrid (Project No. 07N/0042/98) and the DGICYT (Spain) (Grant No. PB-97-1199).
- Subjects :
- Physics
[PHYS]Physics [physics]
geography
geography.geographical_feature_category
Condensed matter physics
Física de materiales
Superlattice
General Physics and Astronomy
02 engineering and technology
Electronic structure
021001 nanoscience & nanotechnology
7. Clean energy
01 natural sciences
Molecular physics
[PHYS] Physics [physics]
Reciprocal lattice
Condensed Matter::Materials Science
Terrace (geology)
0103 physical sciences
010306 general physics
0210 nano-technology
Wave function
Vicinal
Quantum well
Surface states
Subjects
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2001, 87 (10), E-Prints Complutense. Archivo Institucional de la UCM, instname, Scopus-Elsevier, Digital.CSIC. Repositorio Institucional del CSIC, E-Prints Complutense: Archivo Institucional de la UCM, Universidad Complutense de Madrid
- Accession number :
- edsair.doi.dedup.....1f604f29325c2f1664d31f956334983c