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The Clausius-Mossotti relation for insulators
| Content Provider | Scilit |
|---|---|
| Author | Iwamatsu, M. |
| Copyright Year | 1985 |
| Description | Journal: Journal of Physics C: Solid State Physics The generalised form of the classical Clausius-Mossotti relation of the dielectric constant for finite frequencies is derived using the inverse dielectric function formalism combined with the theory of the exciton. The random-phase approximation (RPA) or time-dependent Hartree-Fock approximation (TDHFA), which are normally used, are bypassed by regarding the excitonic state as an exact one-particle excited state of the many-electron system. The dielectric function is then expressed by a formula which is similar to the Clausius-Mossotti relation of the classical dielectric theory. The finite spread of the electron-hole pair is taken into account through the modification of the dipole moment by the amplitude of the envelope function of the exciton. |
| Related Links | http://iopscience.iop.org/article/10.1088/0022-3719/18/15/015/pdf |
| Ending Page | 3071 |
| Page Count | 7 |
| Starting Page | 3065 |
| ISSN | 00223719 |
| DOI | 10.1088/0022-3719/18/15/015 |
| Journal | Journal of Physics C: Solid State Physics |
| Issue Number | 15 |
| Volume Number | 18 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 1985-05-30 |
| Access Restriction | Open |
| Subject Keyword | Journal: Journal of Physics C: Solid State Physics Condensed Matter Physics Clausius Mossotti Relation Dielectric Function |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy Condensed Matter Physics Engineering |
