Time-dependent pseudo Jahn-Teller effect: Phonon-mediated long-time nonadiabatic relaxation

Journal Article · Fri Feb 14 00:00:00 EST 2014 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.4864039· OSTI ID:22255128

Vaikjärv, Taavi; Hizhnyakov, Vladimir ^[1]

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1. Institute of Physics, University of Tartu, Riia 142, 51014 Tartu (Estonia)

Our system under theoretical consideration is an impurity center in a solid. We are considering the time evolution of the center in a quasi-degenerate electronic state. Strict quantum mechanical treatment of non-adiabadicity of the state is used. The phonon continuum is taken into account in addition to the vibration responsible for the main vibronic interaction. To describe the dynamics of the excited state a master equation has been used. The theoretical considerations are illustrated by the calculations of the long-time evolution of vibrations of the center, influenced by the emission of phonons to the bulk.

• OSTI ID: 22255128
• Journal Information: Journal of Chemical Physics, Vol. 140, Issue 6; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
EMISSION
EXCITED STATES
IMPURITIES
INTERACTIONS
JAHN-TELLER EFFECT
PHONONS
QUANTUM MECHANICS
RELAXATION
SOLIDS
TIME DEPENDENCE