Enhanced Eshelby Twist on Thin Wurtzite InP Nanowires and Measurement of   Local Crystal Rotation
  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. 
L. H. G. Tizei, A. J. Craven, L. F. Zagonel, M. Tenc\'e, O. St\'ephan,   T. Chiaramonte, M. A. Cotta, and D. Ugarte
cond-mat.mes-hall cond-mat.mtrl-sci