English

Making sense of nanocrystal lattice fringes

Materials Science 2015-06-24 v2 Atomic and Molecular Clusters Instrumentation and Detectors

Abstract

The orientation-dependence of thin-crystal lattice fringes can be gracefully quantified using fringe-visibility maps, a direct-space analog of Kikuchi maps. As in navigation of reciprocal space with the aid of Kikuchi lines, fringe-visibility maps facilitate acquisition of 3D crystallographic information in lattice images. In particular, these maps can help researchers to determine the 3D lattice parameters of individual nano-crystals, to ``fringe fingerprint'' collections of randomly-oriented particles, and to measure local specimen-thickness with only modest tilt. Since the number of fringes in an image increases with maximum spatial-frequency squared, these strategies (with help from more precise goniometers) will be more useful as aberration-correction moves resolutions into the subangstrom range.

Keywords

Cite

@article{arxiv.cond-mat/0212281,
  title  = {Making sense of nanocrystal lattice fringes},
  author = {P. Fraundorf and W. Qin and Peter Moeck and Eric Mandell},
  journal= {arXiv preprint arXiv:cond-mat/0212281},
  year   = {2015}
}

Comments

12 pages, 15 figures, 2 tables, 60 refs, RevTex4, notes http://www.umsl.edu/~fraundor/help/imagnxtl.htm