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Title: | DENSITY OF STATES FOR AN ELECTRONIC SPECTRUM WITH A FORBIDDEN BAND | Authors: | CASIAN, Anatolie SANDULEAC, Ionel |
Keywords: | electrical conductivity;quasi-one-dimensional materials;organic compounds;thermoelectric figure of merit;thermoelectric converter | Issue Date: | 15-Sep-2020 | Source: | CASIAN, Anatolie, & SANDULEAC, Ionel. (2020). DENSITY OF STATES FOR AN ELECTRONIC SPECTRUM WITH A FORBIDDEN BAND. Journal of Engineering Science, XXVII (3), 33–37. http://doi.org/10.5281/zenodo.3949645 | Journal: | Journal of Engineering Science | Abstract: | Quasi-one-dimensional organic crystals with high electrical conductivity at room temperature are prospect materials for thermoelectric applications. However, usually at some low temperature these materials manifest metal-dielectric transition of Peierls type. The aim of this paper is to calculate the density of electronic states and to show that the metal-dielectric transition is determined by the appearance of a forbidden band in the electronic spectrum exactly above the Fermi energy. While decreasing the temperature T, this forbidden band becomes larger and at some T prevails the value of k0T, where k0 is the Boltzmann constant and the carriers cannot be exited across the forbidden band. This temperature corresponds to metal-dielectric transition. |
URI: | http://cris.utm.md/handle/5014/591 | ISSN: | 2587-3474 2587-3482 |
DOI: | 10.5281/zenodo.3949645 |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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JES-2020-3_33-37.pdf | 842.72 kB | Adobe PDF | View/Open |
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