- AutorIn
- Cristine Villagonzalo
- Titel
- Thermoelectric Transport at the Metal-Insulator Transition in Disordered Systems
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:swb:ch1-200100602
- Datum der Einreichung
- 13.07.2001
- Datum der Verteidigung
- 12.06.2001
- Abstract (EN)
- This dissertation demonstrates the behavior of the electronic transport properties in the presence of a temperature gradient in disordered systems near the metal-insulator transition. In particular, we first determine the d.c. conductivity, the thermopower, the thermal conductivity, the Lorenz number, the figure of merit, and the specific heat of a three-dimensional Anderson model of localization by two phenomenological approaches. Then we also compute the d.c. conductivity, the localization length and the Peltier coefficient in one dimension by a new microscopic approach based on the recursive Green's functions method. A fully analytic study is difficult, if not impossible, due to the problem of treating the intrinsic disorder in the model, as well as, incorporating a temperature gradient in the Hamiltonian. Therefore, we resort to various numerical methods to investigate the problem.
- Freie Schlagwörter
- undgeordnete Systeme
- rekursive Green-Funktionsmethode
- Klassifikation (DDC)
- 530
- Normschlagwörter (GND)
- Metall-Isolator-Phasenumwandlung
- Anderson-Lokalisation
- Thermokraft
- Elektrische Leitfähigkeit
- Amorpher Festkörper
- Den akademischen Grad verleihende / prüfende Institution
- Technische Universität Chemnitz, Chemnitz
- URN Qucosa
- urn:nbn:de:swb:ch1-200100602
- Veröffentlichungsdatum Qucosa
- 13.07.2001
- Dokumenttyp
- Dissertation
- Sprache des Dokumentes
- Englisch