Transport measurements on graphene

Item type:	Thesis of the University of Regensburg (PhD)
Open Access Type:	Primary Publication
Date:	14 January 2013
Referee:	Prof. Dr. Dieter Weiss and Prof. Dr. Klaus Richter
Date of exam:	9 July 2012
Institutions:	Physics > Institute of Experimental and Applied Physics > Chair Professor Weiss > Group Dieter Weiss
Keywords:	Trilayer graphene, graphene nanoribbons, phase coherent transport, universal conductance fluctuations, weak localization, Dreilagiges Graphen, Graphen Nanoribbons, phasenkohärenter Transport, universelle Leitwertfluktuationen, schwache Lokalisierung
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:	25356

Abstract (English)

The focus of my work was on both trilayer graphene devices as well as graphene nanoribbons, which are thin stripes of (single-layer) graphene. On the one hand graphene nanoribbons and arrays of GNRs were measured at the University of Regensburg in magnetic fields up to 16 T, where their phase coherent properties were studied. On the other hand GNRs were measured at Dresden High Magnetic Field ...

Abstract (English)

The focus of my work was on both trilayer graphene devices as well as graphene nanoribbons, which are thin stripes of (single-layer) graphene. On the one hand graphene nanoribbons and arrays of GNRs were measured at the University of Regensburg in magnetic fields up to 16 T, where their phase coherent properties were studied. On the other hand GNRs were measured at Dresden High Magnetic Field Laboratory in pulsed magnetic fields up to 60 T, in order to gain information about the disorder present in our samples. Furthermore, trilayer graphene samples were measured at Dresden High Magnetic Field Laboratory, where the transport properties of differently stacked trilayer devices (ABA and ABC, respectively) were investigated.

Translation of the abstract (German)

Der Schwerpunkt dieser vorliegenden Arbeit waren zum einen Transportmessungen an dreilagigem Graphen, sowie an Graphen Nanoribbons. Letztere sind dünne Steifen aus Graphen. Dabei wurden einerseits Graphen Nanoribbons sowie Arrays von Graphen Nanoribbons an der Universität Regensburg in Magnetfeldern bis zu 15 Tesla gemessen und deren phasenkohärente Eigenschaften untersucht. Andererseits wurden ...

Translation of the abstract (German)

Der Schwerpunkt dieser vorliegenden Arbeit waren zum einen Transportmessungen an dreilagigem Graphen, sowie an Graphen Nanoribbons. Letztere sind dünne Steifen aus Graphen. Dabei wurden einerseits Graphen Nanoribbons sowie Arrays von Graphen Nanoribbons an der Universität Regensburg in Magnetfeldern bis zu 15 Tesla gemessen und deren phasenkohärente Eigenschaften untersucht. Andererseits wurden die GNR Proben in gepulsten Magnetfeldern bis zu 60 Tesla am Hochfeld Magnetlabor Dresden betrachtet um Rückschlüsse auf die vorhandene Unordnung und Störstellen in den Proben ziehen zu können. Desweiteren wurden Proben aus dreilagigem Graphen am Hochfeld Magentlabor Dresden studiert, wobei die stapelfolgeabhängigen (ABA bzw. ABC Stapelfolge) Transporteigenschaften untersucht wurden.

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Translation of the abstract (German)

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