Faradėjaus efekto tyrimai siauratarpiuose puslaidininkiuose: optinė alternatyva Holo matavimams
Clarke, Frederick Walter |
Bendorius, Rimgaudas Adolfas | Disertacijos gynimo komisijos narys / Dissertation Defense Board Member |
Tamulevičius, Sigitas | Disertacijos gynimo komisijos narys / Dissertation Defense Board Member |
Vaičikauskas, Viktoras | Disertacijos gynimo komisijos narys / Dissertation Defense Board Member |
Ašmontas, Steponas | Disertacijos gynimo komisijos pirmininkas / Dissertation Defence Board Chairman |
Babonas, Gintautas Jurgis | Disertacijos gynimo komisijos narys / Dissertation Defense Board Member |
The main aim of this work was to develop a method of screening HgCdTe materials for carrier concentration and mobility using Faraday rotation θ and absorption α. Faraday rotation provides N/m2, where N is the carrier concentration and m is the effective mass. Since m* was not known in HgCdTe, a Faraday rotation spectrometer was developed to systematically measure it as a function of temperature and Cd mole fraction. Effective masses in n-InSb, and n-GaAs were measured and compared with known values in the literature to validate the method. Mobility is proportional to θ/α. The proportionalities were determined in HgCdTe, n-InSb, and n-GaAs at infrared wavelengths. The dissertation consists of the preface, introduction, three chapters, summary and main conclusions, references, list of publications and abstract (in Lithuanian).