High-pressure X-ray diffraction study on alpha-PbF2

L. Ehm; K. Knorr; F. Maedler; H. Voigtlaender; E. Busetto; A. Cassetta; A. Lausi; B. Winkler

High-pressure X-ray diffraction study on alpha-PbF2

Materials Science 2007-05-23 v1

Authors: L. Ehm , K. Knorr , F. Maedler , H. Voigtlaender , E. Busetto , A. Cassetta , A. Lausi , B. Winkler

Abstract

The high-pressure behaviour of alpha-PbF2 has been investigated by angular-dispersive synchrotron X-ray powder diffraction up to 6.55(8) GPa. The fit of a 3rd-order Birch-Murnaghan equation-of-state gave the volume at zero pressure V0=194.14(4)\AA$^3 and the bulk modulus b_0=47.0(6)GPa with the pressure derivative b'=7.9(4). The continuous-symmetry-measure approach has been used for the quantification of the distortion of the coordination polyhedron in alpha-PbF2 revealing an increasing distortion with pressure. keywords here: high pressure, X-ray diffraction, inorganic compounds PACS: 61.10.N2, 62.50.+P, 64.20.+t, 07.35, 61.10.-i

Keywords

high-pressure phase transitions

Cite

@article{arxiv.cond-mat/0209082,
  title  = {High-pressure X-ray diffraction study on alpha-PbF2},
  author = {L. Ehm and K. Knorr and F. Maedler and H. Voigtlaender and E. Busetto and A. Cassetta and A. Lausi and B. Winkler},
  journal= {arXiv preprint arXiv:cond-mat/0209082},
  year   = {2007}
}

Comments

12 pages, 5 figures, 4 tables, submitted to J. Phys. Chem. Sol

High-pressure X-ray diffraction study on alpha-PbF2

Abstract

Keywords

Cite

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