Direct observation of second neighbor interactions for Cr4+ doped forsterite by resonance Raman scattering

Dana M. Calistru; S. G. Demos; R. R. Alfano

doi:10.1063/1.115860

Direct observation of second neighbor interactions for Cr4+ doped forsterite by resonance Raman scattering

Dana M. Calistru, S. G. Demos, R. R. Alfano

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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	https://doi.org/10.1063/1.115860
State	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Direct observation of second neighbor interactions for Cr4+ doped forsterite by resonance Raman scattering",

abstract = "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.",

author = "Calistru, {Dana M.} and Demos, {S. G.} and Alfano, {R. R.}",

year = "1996",

doi = "10.1063/1.115860",

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journal = "Applied Physics Letters",

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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.

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