Excitons, Magnons and Phonons in Molecular Crystals PDF Download
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Author: A. B. Zahlan
Publisher: CUP Archive
ISBN: 9780521073523
Category : Science
Languages : en
Pages : 250
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Book Description
Author: David Parker Craig
Publisher:
ISBN:
Category : Crystals
Languages : en
Pages : 200
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Book Description
Author: A. Davydov
Publisher: Springer
ISBN: 1489951695
Category : Science
Languages : en
Pages : 319
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Book Description
Author: Edgar A. Silinsh
Publisher: Springer Science & Business Media
ISBN: 3642814646
Category : Science
Languages : en
Pages : 404
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Book Description
This book is based on the results of many years of experimental work by the author and his colleagues, dealing with the electronic properties of organic crystals. E. Silinsh has played a leading role in pOinting out the importance of the polarization energy by an excess carrier, in determining not only the character of the carrier mobility in organic crystals, but in determining the band gap and the nature of the all-important trapping site in these crystals. The one-electron model of electronic conductivity that has been so successful in dealing with inorganic semiconductors is singular ly unsuccessful in rationalizing the unusual physical properties of organic crystals. A many-body theory is required, and the experimental manifestation of this is the central role played by the crystal polarization enerqies in transferring the results obtained with the isolated molecule, to the solid. The careful studies of E. Silinsh in this field have shown tn detail how this polarization energy develops around the excess carrier (and also the hole-electron pair) sitting on a molecular site in the crystal. As with all insulators, trapping sites playa dominant role in reducing the magnitude of ~he current that can theoretically pass through the organic crystal. It is usually the case that these trapping sites are energetically distributed within the forbidden band of the crystal. For many years, an exponential distribution has shown itself to be useful and reasonably correct: However,' E.
Author: A. B. Zahlan
Publisher: CUP Archive
ISBN: 9780521073523
Category : Science
Languages : en
Pages : 250
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Book Description
Author: Vladimir M. Agranovich
Publisher: Springer Science & Business Media
ISBN: 3662024063
Category : Science
Languages : en
Pages : 454
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Book Description
Spatial dispersion, namely, the dependence of the dielectric-constant tensor on the wave vector (i.e., on the wavelength) at a fixed frequency, is receiving increased attention in electrodynamics and condensed-matter optics, partic ularly in crystal optics. In contrast to frequency dispersion, namely, the frequency dependence of the dielectric constant, spatial dispersion is of interest in optics mainly when it leads to qualitatively new phenomena. One such phenomenon has been weH known for many years; it is the natural optical activity (gyrotropy). But there are other interesting effects due to spatial dispersion, namely, new normal waves near absorption lines, optical anisotropy of cubic crystals, and many others. Crystal optics that takes spatial dispersion into account includes classical crystal optics with frequency dispersion only, as a special case. In our opinion, this fact alone justifies efforts to develop crystal optics with spatial dispersion taken into account, although admittedly its influence is smaH in some cases and it is observable only under rather special conditions. Furthermore, spatial dispersion in crystal optics deserves attention from another point as well, namely, the investigation of excitons that can be excited by light. We contend that crystal optics with spatial dispersion and the theory of excitons are fields that overlap to a great extent, and that it is sometimes quite impossible to separate them. It is our aim to show the true interplay be tween these interrelations and to combine the macroscopic and microscopic approaches to crystal optics with spatial dispersion and exciton theory.
Author:
Publisher: Springer
ISBN: 3540390685
Category : Science
Languages : en
Pages : 233
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Book Description
Author: E. Silin̦š
Publisher: American Institute of Physics
ISBN:
Category : Science
Languages : en
Pages : 466
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Book Description
Market: Specialists, researchers, and students in solid-state physics, materials science, electronics, chemical physics, organic and physical chemistry, and molecular biophysics. This monograph focuses on the interaction processes of excitons and charge carriers with the local environment, including the polarization and localization phenomena and the formation of polaronic quasi- particles. Transport phenomena are discussed and directly correlated with interaction dynamics, which actually determine the time- and temperature-dependent transiton of charge carriers and excitons from a coherent to a diffusive mode of motion.
Author: Jai Singh
Publisher: Springer Science & Business Media
ISBN: 1489909966
Category : Science
Languages : en
Pages : 276
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Book Description
Applying a unified quantum approach, contributors offer fresh insights into the theoretical developments in the excitation energy transfer processes in condensed matter. This comprehensive volume examines Frenkel and Wannier excitonic processes; rates of excitonic processes; theory of laser sputter and polymer ablation; and polarons, excitonic polarons and self-trapping.
Author: Richard P. Feynman
Publisher: Westview Press
ISBN: 0201360764
Category : Science
Languages : en
Pages : 372
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Book Description
Physics, rather than mathematics, is the focus in this classic graduate lecture note volume on statistical mechanics and the physics of condensed matter.
Author: E.S. Mashkova
Publisher: Elsevier
ISBN: 0444601007
Category : Science
Languages : en
Pages : 463
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Book Description
Medium-Energy Ion Reflection from Solids
