Pure exciton- and magnon-assisted optical transitionsin the one-dimensional antiferromagnet CsMnCl/sub 3/x2H/sub 2/O (CMC)

Journal Article · Mon Jun 01 00:00:00 EDT 1981 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.23.6075· OSTI ID:6342938

Jia, W; Strauss, E; Yen, W M

We report the first observation of the pure electronic transitions in the /sup 4/T/sub 1/ state of Mn/sup 2 +/ ions in the one-dimensional antiferromagnet CsMnCl/sub 3/x2H/sub 2/O (CMC) in the absorption, excitation, and fluorescence spectra. Selection rules are analyzed: the exciton transition is electric dipole allowed, the magnon sideband in emission is a single-ion process, and is both electric and magnetic dipole allowed; however, the magnon sideband in absorption is an ion-pair process and is a weakened-electric-dipole and magnetic-dipole transition. The density of magnon states and the line profile of the magnon sideband have been calculated. The results explain the peculiar line shapes of the observed sideband emission. An exponential decay of the exciton is observed with a lifetime of 0.576 ms.

• Research Organization: Department of Physics, University of Wisconsin, Madison, Wisconsin 53706
• OSTI ID: 6342938
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Vol. 23:11
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CESIUM CHLORIDES
ABSORPTION SPECTRA
FLUORESCENCE
MAGNONS
MANGANESE CHLORIDES
ANTIFERROMAGNETIC MATERIALS
CHLORIDES
ENERGY-LEVEL DENSITY
ENERGY-LEVEL TRANSITIONS
EXCITATION
EXCITONS
HYDRATES
LIFETIME
LINE WIDTHS
SELECTION RULES
ALKALI METAL COMPOUNDS
CESIUM COMPOUNDS
CHLORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LUMINESCENCE
MAGNETIC MATERIALS
MANGANESE COMPOUNDS
MANGANESE HALIDES
MATERIALS
QUASI PARTICLES
SPECTRA
TRANSITION ELEMENT COMPOUNDS
360603* - Materials- Properties