Quantum Wells and Electron Interference Phenomena in Al due to Subsurface Noble Gas Bubbles
Open Access
- 25 March 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 76 (13) , 2298-2301
- https://doi.org/10.1103/physrevlett.76.2298
Abstract
Scanning tunneling microscopy on Ar ion bombarded and annealed aluminum surfaces shows electron interference between the surface and subsurface bubbles of implanted gas. The depth of the bubbles as determined from the energy dependence of the standing waves indicates a minimum around 6–7 layers on Al(111). The appearance and energy dependence of the interference pattern is in good agreement with scattering theory based on free electrons, and indicates the bubbles have a shape given by the Wulff construction.Keywords
This publication has 15 references indexed in Scilit:
- Coupling of image states to quantum-well states for Au on Pd(111)Physical Review B, 1995
- Observation of Quantum-Size Effects at Room Temperature on Metal Surfaces With STMScience, 1994
- Atomically abrupt semiconductor heterointerfaces: their role in advanced electronic and photonic devices and quantum phenomenaApplied Surface Science, 1994
- Confinement of Electrons to Quantum Corrals on a Metal SurfaceScience, 1993
- Thin metallic layers in scanning tunneling microscopySurface Science, 1993
- Quantum well resonances in scanning tunneling microscopySurface Science, 1993
- Imaging standing waves in a two-dimensional electron gasNature, 1993
- Quantum-well states and magnetic coupling between ferromagnets through a noble-metal layerPhysical Review B, 1993
- Electron interferometry at a heterojunction interfacePhysical Review Letters, 1990
- Quantum-Well States in a Metallic System: Ag on Au(111)Physical Review Letters, 1988