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Internal electron diffraction from atomically ordered subsurface nanostructures in metals

, : Internal electron diffraction from atomically ordered subsurface nanostructures in metals. Physical Review Letters 106(19): 196803-196803

We demonstrate that a part of interface at a subsurface nanocavity in Cu(110) can efficiently induce electron scattering back to the surface even if it is inclined with respect to the surface, if the condition for electron diffraction is fulfilled. This backscattering induces oscillations of electron local density of states at the surface versus electron energy. In agreement with our model calculations, the diffraction is assigned to a specific atomic structure at the interface, and is found to be significantly enhanced by focussing of electron waves for propagation along the [110] direction.


PMID: 21668187

DOI: 10.1103/PhysRevLett.106.196803

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