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Site-specific recoil diffraction of backscattered electrons in crystals

Winkelmann, Aimo; Vos, Maarten


A novel diffraction effect in high-energy electron backscattering is demonstrated: the formation of element-specific diffraction patterns via nuclear recoil. For sapphire (Al2O3), the difference in recoil energy allows us to determine if an electron scattered from aluminum or from oxygen. The angular electron distribution obtained in such measurements is a strong function of the recoiling lattice site. These element-specific recoil diffraction features are explained using the dynamical theory...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.106.085503
Access Rights: Open Access


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