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Magneto optical studies of solid states materials
Solodovnyk, Artur ; Malissa, Hans (oponent) ; Tol, Johan van (oponent) ; Neugebauer, Petr (vedoucí práce)
Electrically detected magnetic resonance (EDMR) is a sensitive and powerful technique for the determination of fundamental intrinsic properties of semiconductive solid-state materials. This work describes the fundamental theory of electron paramagnetic resonance and EDMR spectroscopy, in particular, several models of spin-dependent recombination are reviewed. The instrumental and software parts are presented, as well as the development of a new sample holder specific for EDMR. We intend to bring EDMR investigations to a new level, by developing a setup, which will operate at frequencies up to 1.1 THz and external magnetic field up to 16 T. Taking into account the possibilities of a home-built THz Frequency-Domain Rapid Scan (THz FraScan) spectrometer located in CEITEC BUT, samples will be characterized using both magnetic field and frequency sweeps. Thus, compared to the conventional continuous wave (CW) EDMR, this will allow obtaining not only the dependence of the voltage change on the external magnetic field at a given microwave frequency but also measuring frequency-field maps.
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