Journal ArticleDOI
Soliton-like charge-transfer exciton states in quasi-one-dimensional organic crystals
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In this article, a transition from a symmetric to a dimerized soliton occurs accompanied by a crucial change of the lattice distortion pattern, soliton length, etc. This transition corresponds to spontaneous symmetry breaking within an extended state.About:
This article is published in Chemical Physics Letters.The article was published on 1986-06-13. It has received 6 citations till now. The article focuses on the topics: Soliton & Spontaneous symmetry breaking.read more
Citations
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Dielectric theory of weak charge-transfer crystals. I: Effective polarizabilities
TL;DR: In this paper, a nonlinear matrix equation was devised to obtain polarizabilities for the separate components in charge-transfer crystals from the crystal dielectric susceptibility, and the results were obtained for the complexes of anthracene with the acceptors PMDA (pyromellitic dianhydride), TCNQ (7,7,8,8-tetracyanoquinodimethane) and TCNB (1,2,4,5-tritacyanobenzene).
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Core-corrected modified Glauber approximation for e±-alkali-metal-atom collisions
TL;DR: In this paper, the total cross sections for electron and positron scattering by alkali-metal atoms (Li, Na and K) were calculated in a core-corrected modified Glauber approximation using the model potential approach.
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Dielectric theory of weak charge-transfer crystals. II. Polarization energies
R. W. Munn,R.J. Phillips +1 more
TL;DR: Polarization and Coulomb energies for a single excess charge in the complexes of anthracene with PMDA and TCNB (1,2,4,5-tetracyanobenzene) using different sets of molecular polarizabilities from part I were derived in this article.
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Charge-transfer excitons in mixed-stack donor?acceptor compounds: A variety of solitonic states
TL;DR: In this paper, two types of symmetric solitons (denoted by So−, Sπ+) and dimerized ones (D) are described together with the areas of crystal parameters at which they exist.
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Direct photoproduction of self-trapped excitons in quasi-1-d systems
TL;DR: In this article, the qualitative behavior of spectral lines near opitical absorption thresholds in (quasi)-1-d systems is investigated at T = 0, and three possible manners for the absorption vanishing at the topologically forbidden thresholds are found: the square root, power-law and exponential ones.
References
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Journal ArticleDOI
Studies of polaron motion: Part I. The molecular-crystal model
TL;DR: In this paper, a model for polaron motion is described, in simplified form, incorporating the principal physical features of the problem, and the conditions under which the size of the polaron becomes comparable to a lattice spacing (small) are discussed.
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Studies of polaron motion: Part II. The “small” polaron
TL;DR: In this article, the authors considered the case in which the electronic-overlap term of the total Hamiltonian is a small perturbation, and showed that the probability of off-diagonal transitions goes up exponentially with increasing temperature.
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Zero‐phonon lines in the singlet spectrum of the charge transfer crystal anthracene‐PMDA: Experimental evidence and model calculations
TL;DR: In this article, the absorption, fluorescence and reflectivity spectra of anthracene-PMDA (pyromellitic acid dianhydride) single crystals are investigated at 2'°K.
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Reflection and absorption spectra of singlet charge transfer excitons in anthracene–PMDA crystals
TL;DR: In this paper, a theory of exciton-phonon coupling appropriate for weak charge transfer (CT) complex anthracene-pyromellitic dianhydride (A-PMDA) has been briefly described and used to interpret the derived absorption spectrum.
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Interaction of charge transfer excitons with phonons in molecular crystals
TL;DR: In this paper, the interaction of charge transfer excitons with phonons due to modulation of the Coulomb electron-hole attraction by lattice oscillations is considered, which leads in some cases to self-trapping of CT excITons and, as a result, to the hopping character of their migration in the crystal.