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Type: Artigo de periódico
Title: Enhanced Eshelby Twist On Thin Wurtzite Inp Nanowires And Measurement Of Local Crystal Rotation
Author: Tizei L.H.G.
Craven A.J.
Zagonel L.F.
Tence M.
Stephan O.
Chiaramonte T.
Cotta M.A.
Ugarte D.
Abstract: We have performed a detailed study of the lattice distortions of InP wurtzite nanowires containing an axial screw dislocation. Eshelby predicted that this kind of system should show a crystal rotation due to the dislocation induced torque. We have measured the twisting rate and the dislocation Burgers vector on individual wires, revealing that nanowires with a 10-nm radius have a twist up to 100% larger than estimated from elasticity theory. The strain induced by the deformation has a Mexican-hat-like geometry, which may create a tube-like potential well for carriers. © 2011 American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.107.195503
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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