Abstract
The polarized Raman scattering from small single crystals of Cu2HgI4 provided assignments for the more prominent Raman features to specific irreducible representations. The E symmetry assignment, mass dependence, and pressure dependence of the 36 cm-1 band in Cu2HgI4 and 24 cm-1 band in Ag2HgI4 indicate that these features approximate the attempt frequency for ion hopping. The unusually high pre-exponential factor in the Arrhenius expression for ion hopping is discussed in light of the observed attempt frequency; we conclude that despite the high activation energy the conduction mechanism is similar to other heavy-metal solid electrolytes.
| Original language | English |
|---|---|
| Pages (from-to) | 895-901 |
| Number of pages | 7 |
| Journal | Journal of Physics and Chemistry of Solids |
| Volume | 43 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 1982 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Single crystal polarized Raman spectra of the solid electrolyte Cu2HgI4; attempt frequencies for ion motion in Ag2HgI4. / McOmber, J. I.; Shriver, D. F.; Ratner, Mark A.
In: Journal of Physics and Chemistry of Solids, Vol. 43, No. 9, 1982, p. 895-901.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Single crystal polarized Raman spectra of the solid electrolyte Cu2HgI4; attempt frequencies for ion motion in Ag2HgI4
AU - McOmber, J. I.
AU - Shriver, D. F.
AU - Ratner, Mark A
PY - 1982
Y1 - 1982
N2 - The polarized Raman scattering from small single crystals of Cu2HgI4 provided assignments for the more prominent Raman features to specific irreducible representations. The E symmetry assignment, mass dependence, and pressure dependence of the 36 cm-1 band in Cu2HgI4 and 24 cm-1 band in Ag2HgI4 indicate that these features approximate the attempt frequency for ion hopping. The unusually high pre-exponential factor in the Arrhenius expression for ion hopping is discussed in light of the observed attempt frequency; we conclude that despite the high activation energy the conduction mechanism is similar to other heavy-metal solid electrolytes.
AB - The polarized Raman scattering from small single crystals of Cu2HgI4 provided assignments for the more prominent Raman features to specific irreducible representations. The E symmetry assignment, mass dependence, and pressure dependence of the 36 cm-1 band in Cu2HgI4 and 24 cm-1 band in Ag2HgI4 indicate that these features approximate the attempt frequency for ion hopping. The unusually high pre-exponential factor in the Arrhenius expression for ion hopping is discussed in light of the observed attempt frequency; we conclude that despite the high activation energy the conduction mechanism is similar to other heavy-metal solid electrolytes.
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U2 - 10.1016/0022-3697(82)90039-7
DO - 10.1016/0022-3697(82)90039-7
M3 - Article
VL - 43
SP - 895
EP - 901
JO - Journal of Physics and Chemistry of Solids
JF - Journal of Physics and Chemistry of Solids
SN - 0022-3697
IS - 9
ER -