Digitale Medien
Copenhagen
:
International Union of Crystallography (IUCr)
Applied crystallography online
15 (1982), S. 60-64
ISSN:
1600-5767
Quelle:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Thema:
Geologie und Paläontologie
,
Physik
Notizen:
Multiple electron scattering between weak beams has been used as the basis for a simple method to determine the absolute polarity of some non-centrosymmetric crystals. For crystals with the sphalerite structure many orientations have been found in which small departures from centrosymmetry produce large effects on the convergent-beam diffraction patterns (microdiffraction). The effects are reasonably independent of thickness and so can be analyzed qualitatively without the use of computers.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1107/S0021889882011352
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