| Numéro |
J. Phys. Colloques
Volume 47, Numéro C8, Décembre 1986
EXAFS and Near Edge Structure IV
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|---|---|---|
| Page(s) | C8-1081 - C8-1084 | |
| DOI | https://doi.org/10.1051/jphyscol:19868211 | |
EXAFS and Near Edge Structure IV
J. Phys. Colloques 47 (1986) C8-1081-C8-1084
DOI: 10.1051/jphyscol:19868211
Institute for Materials Research, McMaster University, Hamilton, Canada, L8S 4M1
J. Phys. Colloques 47 (1986) C8-1081-C8-1084
DOI: 10.1051/jphyscol:19868211
ORIENTATION AND TEMPERATURE DEPENDENCE OF THE Cd K-SHELL EXAFS OF SINGLE CRYSTAL Cd METAL : FIRST EXAFS OBSERVATION OF R2
A.P. HITCHCOCK, J.D. GARRETT et T. TYLISZCZAKInstitute for Materials Research, McMaster University, Hamilton, Canada, L8S 4M1
Abstract
The K-shell X-ray absorption spectrum of a Cd single crystal has been measured at temperatures from 4 to 300K with the crystal in two orientations - one optimizing EXAFS from the first Cd distance (R1 = 2.97Å), the other optimizing EXAFS from the second Cd distance (R2 = 3.29Å). Clear evidence is obtained for R2 although its visibility varies greatly with temperature on account of the large anisotropy in the thermal motion. The Debye-Waller factors for the thermal motion along R1 and R2 are derived and compared to theory.