Isotope effects in the multiphonon relaxation of hydrated and deuterated cesium chloromanganate (CsMnCl/sub 3/x2H/sub 2/O,x2D/sub 2/O)
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The electronic transition between the /sup 4/T/sub 1/ and /sup 6/A/sub 1/ states of the Mn/sup 2 +/ ion in CsMnCl/sub 3/x2H/sub 2/O has been observed to be weak compared to the same transition in other hosts, due to vibrational quenching. We have observed fluorescence and infrared-absorption spectra of the deuterated compound CsMnCl/sub 3/x2D/sub 2/O and report little change in the phonon sideband associated with the pure electronic transition, but observe a 15-fold increase in the lifetime of the excited state, along with an increase in the /sup 4/T/sub 1/ luminescence intensity. Infrared spectra reveal an intense band of high-frequency phonons which exhibits a large shift in energy with isotopic substitution. We show that these data are consistent with the theory of multiphonon transitions recently presented by Huang and Gu.
- Research Organization:
- Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
- OSTI ID:
- 6264183
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:1; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHARGED PARTICLES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DEUTERATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
HYDRATION
INFRARED SPECTRA
IONS
ISOTOPE EFFECTS
LASERS
LIFETIME
LUMINESCENCE
MANGANESE CHLORIDES
MANGANESE COMPOUNDS
MANGANESE HALIDES
MANGANESE IONS
PHONONS
QUASI PARTICLES
SOLVATION
SPECTRA
TRANSITION ELEMENT COMPOUNDS
400202* -- Isotope Effects
Isotope Exchange
& Isotope Separation
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHARGED PARTICLES
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
DEUTERATION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUORESCENCE
HALIDES
HALOGEN COMPOUNDS
HYDRATION
INFRARED SPECTRA
IONS
ISOTOPE EFFECTS
LASERS
LIFETIME
LUMINESCENCE
MANGANESE CHLORIDES
MANGANESE COMPOUNDS
MANGANESE HALIDES
MANGANESE IONS
PHONONS
QUASI PARTICLES
SOLVATION
SPECTRA
TRANSITION ELEMENT COMPOUNDS