Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T02:35:24.407Z Has data issue: false hasContentIssue false
  • English
  • Français

Thermal Diffuse Scattering in Neutron Time-of-Flight Powder Patterns

Published online by Cambridge University Press:  21 February 2011

Michael J. Radler
Michael J. Radler*
Affiliation:
Department of Materials Science & Engineering, The Robert R. McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL 60208
Get access

Abstract

Inelastic scattering from lattice phonons contributes a significant fraction of the observed Bragg intensity in time of flight neutron powder patterns of transition metal monoxides at elevated temperatures. Ignoring this thermal diffuse scattering (TDS) leads to errors in the site occupations of defects present in these materials. The intensity from one phonon TDS has been calculated as a function of time-of-flight and used to correct the measured intensities. The effect of this correction on the results of Rietveld profile refinement is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 166: Symposium J – Neutron Scattering for Materials Science , 1989 , 67
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1) Cole, I. and Windsor, C.C., Acta Cryst. A36, 697 (1980).CrossRefGoogle Scholar
2) Willis, B.T.M., Acta Cryst. A25 277 (1969).CrossRefGoogle Scholar
3) Warren, B.E., X-Ray Diffraction, p.164,200, Addison Wesley (1969).Google Scholar
4) Walker, C.B. and Paskin, D.R., Acta Cryst. A28, 572 (1972).CrossRefGoogle Scholar
5) Radler, M.J., Faber, J. Jr., and Cohen, J.B., accepted for publication in J.Phys.Chem. SolidsGoogle Scholar
6) Kugel, C., Carabatos, C., Hennion, B., Prevot, B., Revcolevschi, A., and Tocchetti, D., Phys. Rev. B16, 378 (1977).CrossRefGoogle Scholar
7) CRC Handbook of Chemistry and Physics, 66th ed., (CRC Press, 1985), p. B107,B113.Google Scholar
8) Dreele, R.B. Von, Jorgensen, J.D., and Windsor, C.G., J.Appl.Cryst. 15, 581 (1982).CrossRefGoogle Scholar
9) Willis, B.T.M., Carlile, C.J., and Ward, R.C., Acta Cryst. A42, 188 (1986).Google Scholar
10) Gartsteín, E., Ph.D. Thesis, Northwestern University, (1984).Google Scholar
11) Cheethäm, A.K., Fender, B.E.F., and Taylor, R.I., J.Phys.C:Solid St. Phys. 4, 2160 (1971).CrossRefGoogle Scholar