Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Ferromagnetic Semiconductors"”.
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Magnetic coupling in (GaMn)As ferromagnetic semiconductors – studied by soft x-ray spectroscopy
Durch die Dotierung von Gallium Arsenid mit Mangan werden lokale magnetische Momente implantiert und gleichzeitig Ladungsträger (Valenzband Löcher) erzeugt, welche eine langreichweitige ferromagnetische Kopplung zwischen den einzelnen Mangan Ionen herstellen können. In dieser Arbeit wurde die …
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A Study of the Nucleation and Formation of Multi-functional Nanostructures using GaN-Based Materials for Device Applications
… measurements revealed magnetic properties of ferromagnetic nanostructure. Especially, room temperature ferromagnetism was observed in GaFeN nanostructures, which can contribute to ferromagnetic semiconductors operating above room temperature.
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Time-Resolved Studies of Magnetic and Non-Magnetic Narrow-Gap Semiconductors
… spin relaxation, injection, and manipulation in semiconductors have attracted considerable interest because of several potential applications in "spintronic" devices and the necessity to understand and control spin-based phenomena. In light of the growing interest in spin-related phenomena and …
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Atom-by-Atom Substitution of Transition Metals in GaAs and Visualization of Hole-Mediated Interactions
… hurdle remaining for realistic applications of ferromagnetic semiconductors, such as Ga(1-x)Mn(x)As, is their below room-temperature ferromagnetic transition temperature. Enhancing ferromagnetism in semiconductors requires understanding the mechanisms for interactions between magnetic dopants …
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Magnetotransport effects in lateral and vertical ferromagnetic semiconductor junctions
… magnetoresistance (TAMR)effects in (Ga,Mn) based ferromagnetic semiconductor junctions. Detailed results are published in the following articles: [1] C. Rüster, T. Borzenko, C. Gould, G. Schmidt, L.W. Molenkamp, X. Liu, T.J.Wojtowicz, J.K. Furdyna, Z.G. Yu and M. Flatt´e, Very Large …
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Time Resolved Spectroscopy in InAs and InSb based Narrow-Gap Semiconductors
… it is crucial to probe carrier dynamics in semiconductors on femtosecond timescales. Time resolved spectroscopy is an excellent tool to probe the relaxation dynamics of photoexcited carriers; where after the initial photoexcitation, the nonequilibrium population of electrons and holes relax …