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Terahertz Laser Spectroscopy of Two- and Three-Dimensional Topological Insulators based on HgTe Nanostructures

Dantscher, Kathrin-Maria (2017) Terahertz Laser Spectroscopy of Two- and Three-Dimensional Topological Insulators based on HgTe Nanostructures. PhD, Universität Regensburg.

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Date of publication of this fulltext: 15 Dec 2017 08:43

Abstract (English)

In the framework of this thesis, two- and three-dimensional topological insulators (TI) are investigated with opto-electronic effects in the terahertz range. It is demonstrated that in both cases, photogalvanic effects can be utilized for the detection and the analysis of Dirac fermion states. In the three-dimensional case, a cyclotron-resonance-enhanced photocurrent is observed by exciting 80 nm ...

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Translation of the abstract (German)

Im Rahmen dieser Arbeit werden zwei- und dreidimensionale topologische Isolatoren (TI) mit optoelektronischen Effekten im Terahertzbereich untersucht. Dabei wird gezeigt, dass in beiden Fällen der photogalvanische Effekt für den Nachweis als auch für die Analyse von Dirac-Fermionen genutzt werden kann. Im dreidimensionalen Fall wird ein durch Zyklotronresonanz verstärkter Photostrom nachgewiesen, ...

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Item type:Thesis of the University of Regensburg (PhD)
Date:15 December 2017
Referee:Prof. Dr. Sergey D. Ganichev
Date of exam:8 December 2017
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Keywords:Topologische Isolatoren, Quecksilbertelluride, Terahertz-Laserspektroskopie, HgTe-Nanostrukturen
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:36461
Owner only: item control page

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