Light and Matter Id / Licht und Materie Id:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Weitere Verfasser: | |
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
Berlin, Heidelberg
Springer Berlin Heidelberg
1984
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| Schriftenreihe: | Encyclopedia of Physics Handbuch der Physik
25,2,4 |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Beschreibung: | The dynamical properties of solids have recently attracted renewed interest in connection with the increasing understanding of phase transitions and related phenomena. In particular, soft modes or, more generally, phonon 'anomalies' seem to play an important role in structural and electronic phase transitions, such as ferroelectric or superconducting transitions. The understanding of the mechanisms responsible for the occurrence of unusually low frequencies in phonon spectra requires a detailed analysis of the microscopic forces governing the lattice vibrations. Of particular importance is the influence of the electronlattice interaction in the adiabatic approximation which in many cases is the origin of peculiarities in the phonon self-energy. In this work the vibrational spectra of pure non-metals and of those containing point defects are investigated. ' In these materials the interrelation between the pseudo-harmonic forces (determining the phonon dispersion relations) and the non-linear anharmonic and electron-phonon forces (as they act in infrared and Raman spectra) is most obvious and can be quantitatively analysed in terms of appropriate models. The main task is to arrive at a physically correct treatment of electronic degrees of freedom, as for example in an electronic 'shell' model, which leads to the description of phonon spectra in terms of long-range polarizabilities and short-range deformabilities. The purpose of our review is to stimulate further investigations which, we hope, will result in explicit relations between the parameters of the semi-microscopic models and the matrix elements from the electronic band structure |
| Beschreibung: | 1 Online-Ressource (XIV, 602 p) |
| ISBN: | 9783642464331 9783642464355 |
| ISSN: | 0085-140X |
| DOI: | 10.1007/978-3-642-46433-1 |
Internformat
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| 245 | 1 | 0 | |a Light and Matter Id / Licht und Materie Id |c by H. Bilz, D. Strauch, R. K. Wehner ; edited by Ludwig Genzel |
| 264 | 1 | |a Berlin, Heidelberg |b Springer Berlin Heidelberg |c 1984 | |
| 300 | |a 1 Online-Ressource (XIV, 602 p) | ||
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| 490 | 1 | |a Encyclopedia of Physics / Handbuch der Physik |v 5 / 25 / 2 / 2d |x 0085-140X | |
| 500 | |a The dynamical properties of solids have recently attracted renewed interest in connection with the increasing understanding of phase transitions and related phenomena. In particular, soft modes or, more generally, phonon 'anomalies' seem to play an important role in structural and electronic phase transitions, such as ferroelectric or superconducting transitions. The understanding of the mechanisms responsible for the occurrence of unusually low frequencies in phonon spectra requires a detailed analysis of the microscopic forces governing the lattice vibrations. Of particular importance is the influence of the electronlattice interaction in the adiabatic approximation which in many cases is the origin of peculiarities in the phonon self-energy. In this work the vibrational spectra of pure non-metals and of those containing point defects are investigated. ' In these materials the interrelation between the pseudo-harmonic forces (determining the phonon dispersion relations) and the non-linear anharmonic and electron-phonon forces (as they act in infrared and Raman spectra) is most obvious and can be quantitatively analysed in terms of appropriate models. The main task is to arrive at a physically correct treatment of electronic degrees of freedom, as for example in an electronic 'shell' model, which leads to the description of phonon spectra in terms of long-range polarizabilities and short-range deformabilities. The purpose of our review is to stimulate further investigations which, we hope, will result in explicit relations between the parameters of the semi-microscopic models and the matrix elements from the electronic band structure | ||
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Datensatz im Suchindex
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| author | Bilz, H. |
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| author_sort | Bilz, H. |
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| building | Verbundindex |
| bvnumber | BV042413160 |
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| ctrlnum | (OCoLC)905372981 (DE-599)BVBBV042413160 |
| dewey-full | 621.36 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 621 - Applied physics |
| dewey-raw | 621.36 |
| dewey-search | 621.36 |
| dewey-sort | 3621.36 |
| dewey-tens | 620 - Engineering and allied operations |
| discipline | Physik Elektrotechnik / Elektronik / Nachrichtentechnik |
| doi_str_mv | 10.1007/978-3-642-46433-1 |
| format | Electronic eBook |
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| id | DE-604.BV042413160 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-10T01:20:52Z |
| institution | BVB |
| isbn | 9783642464331 9783642464355 |
| issn | 0085-140X |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027848653 |
| oclc_num | 905372981 |
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| physical | 1 Online-Ressource (XIV, 602 p) |
| psigel | ZDB-2-PHA ZDB-2-BAE ZDB-2-PHA_Archive |
| publishDate | 1984 |
| publishDateSearch | 1984 |
| publishDateSort | 1984 |
| publisher | Springer Berlin Heidelberg |
| record_format | marc |
| series | Encyclopedia of Physics Handbuch der Physik |
| series2 | Encyclopedia of Physics / Handbuch der Physik |
| spelling | Bilz, H. Verfasser aut Light and Matter Id / Licht und Materie Id by H. Bilz, D. Strauch, R. K. Wehner ; edited by Ludwig Genzel Berlin, Heidelberg Springer Berlin Heidelberg 1984 1 Online-Ressource (XIV, 602 p) txt rdacontent c rdamedia cr rdacarrier Encyclopedia of Physics / Handbuch der Physik 5 / 25 / 2 / 2d 0085-140X The dynamical properties of solids have recently attracted renewed interest in connection with the increasing understanding of phase transitions and related phenomena. In particular, soft modes or, more generally, phonon 'anomalies' seem to play an important role in structural and electronic phase transitions, such as ferroelectric or superconducting transitions. The understanding of the mechanisms responsible for the occurrence of unusually low frequencies in phonon spectra requires a detailed analysis of the microscopic forces governing the lattice vibrations. Of particular importance is the influence of the electronlattice interaction in the adiabatic approximation which in many cases is the origin of peculiarities in the phonon self-energy. In this work the vibrational spectra of pure non-metals and of those containing point defects are investigated. ' In these materials the interrelation between the pseudo-harmonic forces (determining the phonon dispersion relations) and the non-linear anharmonic and electron-phonon forces (as they act in infrared and Raman spectra) is most obvious and can be quantitatively analysed in terms of appropriate models. The main task is to arrive at a physically correct treatment of electronic degrees of freedom, as for example in an electronic 'shell' model, which leads to the description of phonon spectra in terms of long-range polarizabilities and short-range deformabilities. The purpose of our review is to stimulate further investigations which, we hope, will result in explicit relations between the parameters of the semi-microscopic models and the matrix elements from the electronic band structure Physics Optics, Optoelectronics, Plasmonics and Optical Devices Strauch, D. Sonstige oth Wehner, R. K. Sonstige oth Genzel, Ludwig edt Encyclopedia of Physics Handbuch der Physik 25,2,4 (DE-604)BV000060057 25,2,4 https://doi.org/10.1007/978-3-642-46433-1 Verlag Volltext |
| spellingShingle | Bilz, H. Light and Matter Id / Licht und Materie Id Encyclopedia of Physics Handbuch der Physik Physics Optics, Optoelectronics, Plasmonics and Optical Devices |
| title | Light and Matter Id / Licht und Materie Id |
| title_auth | Light and Matter Id / Licht und Materie Id |
| title_exact_search | Light and Matter Id / Licht und Materie Id |
| title_full | Light and Matter Id / Licht und Materie Id by H. Bilz, D. Strauch, R. K. Wehner ; edited by Ludwig Genzel |
| title_fullStr | Light and Matter Id / Licht und Materie Id by H. Bilz, D. Strauch, R. K. Wehner ; edited by Ludwig Genzel |
| title_full_unstemmed | Light and Matter Id / Licht und Materie Id by H. Bilz, D. Strauch, R. K. Wehner ; edited by Ludwig Genzel |
| title_short | Light and Matter Id / Licht und Materie Id |
| title_sort | light and matter id licht und materie id |
| topic | Physics Optics, Optoelectronics, Plasmonics and Optical Devices |
| topic_facet | Physics Optics, Optoelectronics, Plasmonics and Optical Devices |
| url | https://doi.org/10.1007/978-3-642-46433-1 |
| volume_link | (DE-604)BV000060057 |
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