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Orientational Dynamcs in White Phosphorus (P4)

Published online by Cambridge University Press:  22 February 2011

W.A. Kamitakahara ,
F. Gompf  and
D.A. Neumann
W.A. Kamitakahara
Affiliation:
Reactor Radiation Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
F. Gompf
Affiliation:
Kernforschungszentrum Karlsruhe, Institut für Nukleare Festkörperphysik, D-76021 Karlsruhe, Germany
D.A. Neumann
Affiliation:
Reactor Radiation Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
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Abstract

Above To = 196 K, white phosphorus, a solid composed of P4 molecules, exhibits a plastic crystal phase. Below this temperature, the structure is triclinic and orientationally ordered, with six molecules in a unit cell. Using inelastic neutron scattering on a polycrystalline sample, observations were made of the rapid reorientational motions above To, and the librational modes below To. In addition, neutron powder diffraction was used to investigate the crystal structures above and below To.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 775
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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