Dynamic Jahn-Teller effect in C{sub 60}: Self-trapped excitons and resonant Raman scattering

Journal Article · Sat Apr 15 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.51.10209· OSTI ID:44603

Wang, W Z ^[1]; Wang, C L ^[2]; Bishop, A R ^[1]; Yu, L ^[3]; Su, Z B ^[4]

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. China Center of Advanced Science and Technology (World Laboratory), Beijing 100080 (China)
3. International Center for Theoretical Physics, P.O. Box 586, Trieste 34100 (Italy)
4. Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080 (China)

The dynamic Jahn-Teller problem is solved for the lowest triplet and singlet self-trapped excitons of C{sub 60}. The resultant tunnel-split {sup 3}{ital T}{sub 3{ital g}}{direct_sum}{sup 3}{ital T}{sub 1{ital g}} states provide a good explanation for the available experimental data on the lowest triplet states. The observable consequences of this dynamical symmetry breaking in the photoinduced multiphonon resonant Raman scattering are explored in detail. The tunneling splitting itself should show up in the Raman spectrum, and the depolarization ratio (which can be normal or unusual, depending on exciting frequencies) is calculated explicitly.

• OSTI ID: 44603
• Journal Information: Physical Review, B: Condensed Matter, Vol. 51, Issue 15; Other Information: PBD: 15 Apr 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FULLERENES
JAHN-TELLER EFFECT
EXCITONS
RAMAN SPECTRA
TRAPPING
TUNNEL EFFECT