skip to main content

SciTech ConnectSciTech Connect

Title: Nanoscale three-dimensional reconstruction of elastic and inelastic mean free path lengths by electron holographic tomography

Electron holography at medium resolution simultaneously probes projected electrostatic and magnetostatic potentials as well as elastic and inelastic attenuation coefficients with a spatial resolution of a few nanometers. In this work, we derive how the elastic and inelastic attenuation can be disentangled. Using that result, we perform the first three dimensional tomographic reconstruction of potential and (in)elastic attenuation in parallel. The technique can be applied to distinguish between functional potentials and composition changes in nanostructures, as demonstrated using the example of a GaAs—Al{sub 0.33}Ga{sub 0.67}As core-shell nanowire.
Authors:
; ; ; ;  [1] ;  [2] ;  [3]
  1. Triebenberg Laboratory, Institute of Structure Physics, Technische Universität Dresden, 01062 Dresden (Germany)
  2. IMM-CNR, Lecce Research Unit, S.P. 6 Lecce-Monteroni, I-73100 Lecce (Italy)
  3. Dipartimento di Ingegneria dell'Innovazione, Università del Salento, S.P. 6 Lecce-Monteroni, I-73100 Lecce (Italy)
Publication Date:
OSTI Identifier:
22310668
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 17; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM COMPOUNDS; ATTENUATION; ELECTRONS; GALLIUM ARSENIDES; HOLOGRAPHY; MEAN FREE PATH; NANOSTRUCTURES; NANOWIRES; SPATIAL RESOLUTION; THREE-DIMENSIONAL CALCULATIONS; TOMOGRAPHY