X-Ray diffraction on large single crystals using a powder diffractometer
- Univ. of Augsburg, Augsburg (Germany). Inst. of Physics, Center for Electronic Correlations and Magnetism; Ames Lab., Ames, IA (United States)
- Univ. of Augsburg, Augsburg (Germany). Inst. of Physics, Center for Electronic Correlations and Magnetism
- Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States). Dept. of Physics and Astronomy
Information on the lattice parameter of single crystals with known crystallographic structure allows for estimations of sample quality and composition. In many cases it is sufficient to determine one lattice parameter or the lattice spacing along a certain, high- symmetry direction, e.g. in order to determine the composition in a substitution series by taking advantage of Vegard’s rule. Here we present a guide to accurate measurements of single crystals with dimensions ranging from 200 μm up to several millimeter using a standard powder diffractometer in Bragg-Brentano geometry. The correction of the error introduced by the sample height and the optimization of the alignment are discussed in detail. Finally, in particular for single crystals with a plate-like habit, the described procedure allows for measurement of the lattice spacings normal to the plates with high accuracy on a timescale of minutes.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-07CH11358
- OSTI ID:
- 1326833
- Report Number(s):
- IS-J-9060
- Journal Information:
- Philosophical Magazine (2003, Print), Vol. 96, Issue 20; ISSN 1478-6435
- Publisher:
- Taylor & FrancisCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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