Diffraction from twisted nanowires: helicity revealed by anisotropy
Abstract
The helical nature of twisted nanowires is studied by simulated X-ray diffraction. It is shown that this helicity is revealed by the anisotropy, which can be both an elastic anisotropy, through the warping displacement generated by torsion, or a shape anisotropy of the cross section. To support the analytical calculations, based on the kinematic theory of diffraction by helices, atomistic simulations of copper nanowires are performed.
Domains
Physics [physics] Condensed Matter [cond-mat] Materials Science [cond-mat.mtrl-sci] Chemical Sciences Cristallography Physics [physics] Mechanics [physics] Solid mechanics [physics.class-ph] Engineering Sciences [physics] Materials Physics [physics] Physics [physics] Computational Physics [physics.comp-ph] Physics [physics] Physics [physics] Optics [physics.optics]
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