Abstract
Fifteen Cr4+ local modes are observed using resonance Raman scattering in a Cr:Mg<thin>2SiO4 crystal, instead of a maximum of nine internal vibrations predicted by first neighbor interactions. The larger-than-predicted number of modes is explained in terms of second neighbor interactions for the Cr4+ ion. The frequency dependence of the two tetrahedral stretching modes measured at 361 and 765 cm-1 on second neighbor parameters shows a different degree of localization at the Cr<thin>4+ site for these modes.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2207-2209 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 68 |
| Issue number | 16 |
| DOIs | |
| State | Published - 1996 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Direct observation of second neighbor interactions for Cr4+ doped forsterite by resonance Raman scattering. / Calistru, Dana M.; Demos, S. G.; Alfano, R. R.
In: Applied Physics Letters, Vol. 68, No. 16, 1996, p. 2207-2209.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Direct observation of second neighbor interactions for Cr4+ doped forsterite by resonance Raman scattering
AU - Calistru, Dana M.
AU - Demos, S. G.
AU - Alfano, R. R.
PY - 1996
Y1 - 1996
N2 - Fifteen Cr4+ local modes are observed using resonance Raman scattering in a Cr:Mg2SiO4 crystal, instead of a maximum of nine internal vibrations predicted by first neighbor interactions. The larger-than-predicted number of modes is explained in terms of second neighbor interactions for the Cr4+ ion. The frequency dependence of the two tetrahedral stretching modes measured at 361 and 765 cm-1 on second neighbor parameters shows a different degree of localization at the Cr4+ site for these modes.
AB - Fifteen Cr4+ local modes are observed using resonance Raman scattering in a Cr:Mg2SiO4 crystal, instead of a maximum of nine internal vibrations predicted by first neighbor interactions. The larger-than-predicted number of modes is explained in terms of second neighbor interactions for the Cr4+ ion. The frequency dependence of the two tetrahedral stretching modes measured at 361 and 765 cm-1 on second neighbor parameters shows a different degree of localization at the Cr4+ site for these modes.
UR - http://www.scopus.com/inward/record.url?scp=8744290024&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=8744290024&partnerID=8YFLogxK
U2 - 10.1063/1.115860
DO - 10.1063/1.115860
M3 - Article
VL - 68
SP - 2207
EP - 2209
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 16
ER -