Phys. Rev. Lett. 76, 2298–2301 (1996)Quantum Wells and Electron Interference Phenomena in Al due to Subsurface Noble Gas BubblesReceived 18 December 1995; published in the issue dated 25 March 1996 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. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.2298
DOI:
10.1103/PhysRevLett.76.2298
PACS:
61.16.Ch, 61.80.Jh, 73.20.Dx
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