ISSN:
1600-5724
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
Notes:
Solutions to the mixed Bragg–Laue case for transmission low-energy electron diffraction (TLEED) are derived for thin crystalline slabs and applied to the low-voltage (0–1 kV) field-emission point-projection transmission microscope [Fink, Schmid, Kreuzer & Wierbicki (1991). Phys. Rev. Lett. 67, 1543–1546]. Absorption due to inelastic scattering, exchange and virtual inelastic scattering effects are considered. The relationship between Fourier imaging, shadow imaging, holography of extended objects and holography of small objects is briefly discussed, together with the optimum energy for atomic resolution electron microscopy and holography. The importance of multiple scattering in transmission-electron interference patterns obtained at LEED energies with spherical-wave illumination is evaluated and the nature of the optical potential that might be recovered holographically is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S0108767392010705
Permalink