Professor Frank Reginald Nunes Nabarro, FRS

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This site contains articles by and an obituary on Professor F.R.N. Nabarro, Fellow of the Royal Society (FRS), who passed away on 20 July 2006 at the age of 90. At the time of his death he was Honorary Research Professorial Fellow in the School of Physics, University of the Witwatersrand, Johannesburg.

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    Dislocations in a simple cubic lattice
    (Physical Society, 1947) Nabarro, F.R.N.
    The properties of dislocations are calculated by an approximate method due to Peierls. The width of a dislocation is small, displacements comparable with the interatomic distance being confined to a few atoms. The shear stress required to move a dislocation in an otherwise perfect latttice is of the order of a thousandth of the "theoretical" shear strength. The energy and effective mass of a single dislocation increase logarithmically with the size of the specimen.