Scattering of electrons on screw dislocations

Details Scattering of electrons on screw dislocations Scattering of electrons on screw dislocations

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvb..5913491b&link_type=abstract

Physical Review B (Condensed Matter and Materials Physics), Volume 59, Issue 21, June 1, 1999, pp.13491-13493

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Linear Defects: Dislocations, Disclinations, Quantum Field Theory In Curved Spacetime, Scattering By Point Defects, Dislocations, Surfaces, And Other Imperfections

Scientific paper

A previously established general framework for the description of long-wavelength quantum states of electrons in a crystal with topological defects is used to discuss the scattering of electrons on a screw dislocation. The corresponding Schrödinger equation contains contributions of the type of a vector potential as well as of a repulsive scalar potential. Together they give rise to modified Aharonov-Bohm interferences in the scattering amplitude, for which the far-field expression is calculated exactly.

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