Phys. Rev. Lett. 78, 2815–2818 (1997)Electron Fringes on a Quantum WedgeReceived 11 October 1996; published in the issue dated 7 April 1997 Using molecular beam epitaxy we have fabricated a quantum wedge: a nanoscale flat-top lead island on a stepped Si(111) surface. Imaging the top surface of the wedge with a scanning tunneling microscopy reveals the phenomenon of electron interference fringes: a discrete periodic spatial variation of the tunnel current originating from the quantization of electron states in the wedge. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.78.2815
DOI:
10.1103/PhysRevLett.78.2815
PACS:
73.20.Dx, 61.16.Ch, 73.61.-r, 85.40.Ux
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