Magneto Photoluminescence and Ultrafast Spectroscopy on High-Mobility Two-Dimensional Electron Systems PDF Download
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Author: Patrick Schröter
Publisher: Cuvillier Verlag
ISBN: 3865372317
Category :
Languages : en
Pages : 120
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Book Description
Author: Patrick Schröter
Publisher: Cuvillier Verlag
ISBN: 3865372317
Category :
Languages : en
Pages : 120
Get Book Here
Book Description
Author: Patrick Schröter
Publisher: Cuvillier Verlag
ISBN: 3736912315
Category : Science
Languages : de
Pages : 120
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Book Description
In this work, the focus of the time-resolved experiments is on the modulationdoped single-well structures. These are of high-quality but have the disadvantage that they only exhibit weak Four Wave Mixing signals. Up to now, only results on the doped multiple well structures exist. A main part of the Four Wave Mixing experiments focuses on the two-dimensional electron gas at filling factor ν = 1. With increasing magnetic field a step-like increase of the dephasing time at ν = 1 is found for the light-hole like transition. Moreover, it is deduced that the dephasing time not only depends on the electron states but also on the coupling between the hole states. A sample structure is introduced, specially designed for our time-resolved experiments, that provides for weak signals the necessary prealignment of the setup. On these samples, also circular polarization resolved measurements could be performed. In these experiments, no signature of filling factor ν = 1 is resolved in the dephasing time. From the dephasing times of the excitons, it is concluded that the charged exciton is probably not localized in our sample. Moreover, an interchanged beating pattern of the neutral excitons with the triplet state is observed.
Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 820
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Author: Marília Caldas
Publisher: American Institute of Physics
ISBN: 9780735407367
Category : Technology & Engineering
Languages : en
Pages : 586
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Book Description
The conference covered the current and future direction for research in the area of physics of semiconductors, such as growth, sufaces, and interfaces, defects and impurities, wide-band-gap semiconductors, molecular systems, and organic semiconductors, and others.
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ISBN:
Category : Physics
Languages : en
Pages : 802
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Category : Engineering
Languages : en
Pages : 390
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Category : Chemistry
Languages : en
Pages : 2540
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Category : Aeronautics
Languages : en
Pages : 702
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Category : Engineering
Languages : en
Pages : 1688
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Category : Electrical engineering
Languages : en
Pages : 1860
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