Graphlocons: Large dendritic graphene crystals and their electronic properties

Submillimeter dendritic-shaped crystals were synthesized by low pressure vapor chemical vapor deposition inside a copper enclosure. With their sixfold symmetry and fractal-like shape, the resulting crystals resemble snowflakes. The electronic properties of the devices were investigated down to sub-K...

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Bibliographic Details
Main Authors: Massicotte Mathieu, Yu, Victor, Whiteway, Eric, Hilke, Michael
Format: Conference Proceeding
Language:English
Subjects:
Chemical synthesis
CHEMICAL VAPOR DEPOSITION
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Crystals
DENDRITES
Electronic devices
GRAPHENE
HALL EFFECT
Low pressure
MAGNETORESISTANCE
Magnetoresistivity
MATERIALS SCIENCE
Organic chemistry
Quantum Hall effect
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Summary:Submillimeter dendritic-shaped crystals were synthesized by low pressure vapor chemical vapor deposition inside a copper enclosure. With their sixfold symmetry and fractal-like shape, the resulting crystals resemble snowflakes. The electronic properties of the devices were investigated down to sub-Kelvin temperatures, showing mobilities over 5000 cm2/Vs and the quantum Hall effect at 8T. The magnetoresistance also displayed a sharp peak at zero field which we attribute to weak localization.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4848330