Search Results - "Starke, U"
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Quasi-free-standing epitaxial graphene on SiC obtained by hydrogen intercalation
Published in Physical review letters (11-12-2009)“…Quasi-free-standing epitaxial graphene is obtained on SiC(0001) by hydrogen intercalation. The hydrogen moves between the (6 square root(3) x 6 square…”
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Evidence for superconductivity in Li-decorated monolayer graphene
Published in Proceedings of the National Academy of Sciences - PNAS (22-09-2015)“…Monolayer graphene exhibits many spectacular electronic properties, with superconductivity being arguably the most notable exception. It was theoretically…”
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Tracking Primary Thermalization Events in Graphene with Photoemission at Extreme Time Scales
Published in Physical review letters (21-08-2015)“…Direct and inverse Auger scattering are amongst the primary processes that mediate the thermalization of hot carriers in semiconductors. These two processes…”
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Structural and Electronic Properties of Nitrogen-Doped Graphene
Published in Physical review letters (25-03-2016)“…We investigate the structural and electronic properties of nitrogen-doped epitaxial monolayer graphene and quasifreestanding monolayer graphene on 6H-SiC(0001)…”
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Adatoms and clusters of 3d transition metals on graphene: electronic and magnetic configurations
Published in Physical review letters (29-03-2013)“…We investigate the electronic and magnetic properties of single Fe, Co, and Ni atoms and clusters on monolayer graphene (MLG) on SiC(0001) by means of scanning…”
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Room temperature strain-induced Landau levels in graphene on a wafer-scale platform
Published in Science advances (01-11-2019)“…Graphene is a powerful playground for studying a plethora of quantum phenomena. One of the remarkable properties of graphene arises when it is strained in…”
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Structural properties of the graphene-SiC(0001) interface as a key for the preparation of homogeneous large-terrace graphene surfaces
Published in Physical review. B, Condensed matter and materials physics (07-12-2007)“…We report on the interface between graphene and 4H-SiC(0001) as investigated by scanning tunneling microscopy (STM) and low energy electron diffraction (LEED)…”
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Pulsed laser deposition for the synthesis of monolayer WSe2
Published in Applied physics letters (14-08-2017)“…Atomically thin films of WSe2 from one monolayer up to 8 layers were deposited on an Al2O3 r-cut ( 1 1 ¯ 02 ) substrate using a hybrid-Pulsed Laser Deposition…”
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Approaching truly freestanding graphene: the structure of hydrogen-intercalated graphene on 6H-SiC(0001)
Published in Physical review letters (13-03-2015)“…We measure the adsorption height of hydrogen-intercalated quasifreestanding monolayer graphene on the (0001) face of 6H silicon carbide by the normal incidence…”
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10
Low temperature growth of epitaxial graphene on SiC induced by carbon evaporation
Published in Applied physics letters (07-12-2009)“…Low temperature growth of epitaxial graphene on SiC is facilitated by carbon evaporation under ultrahigh vacuum (UHV) conditions. By counteracting the need for…”
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Precise in situ thickness analysis of epitaxial graphene layers on SiC(0001) using low-energy electron diffraction and angle resolved ultraviolet photoelectron spectroscopy
Published in Applied physics letters (21-07-2008)“…We demonstrate an easy and practical method for the thickness analysis of epitaxial graphene on SiC(0001) that can be applied continuously during the…”
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High-Mobility Epitaxial Graphene on Ge/Si(100) Substrates
Published in ACS applied materials & interfaces (23-09-2020)“…Graphene was shown to reveal intriguing properties of its relativistic two-dimensional electron gas; however, its implementation to microelectronic…”
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13
Ageing of electrochemical double layer capacitors
Published in Journal of power sources (01-04-2012)“…[Display omitted] ► Supercapacitors exhibit very slow (electro)chemical changes. ► We characterized devices after ageing under various temperatures and…”
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Bipolar gating of epitaxial graphene by intercalation of Ge
Published in Applied physics letters (30-06-2014)“…In this study, the ambivalent behavior of Ge intercalation is studied by means of scanning tunneling microscopy and spectroscopy as well as local 4-point probe…”
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15
Chemical and electrochemical ageing of carbon materials used in supercapacitor electrodes
Published in Carbon (New York) (01-11-2008)“…Electrochemical double layer capacitors–supercapacitors–are usually based on highly porous activated carbon electrodes. The chemical and electrochemical…”
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Phase formation in hole- and electron-doped rare-earth nickelate single crystals
Published in APL materials (01-08-2023)“…The recent discovery of superconductivity in hole-doped infinite-layer nickelates has triggered a great interest in the synthesis of novel nickelate phases,…”
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Ubiquitous defect-induced density wave instability in monolayer graphene
Published in Science advances (10-06-2022)“…Quantum materials are notoriously sensitive to their environments, where small perturbations can tip a system toward one of several competing ground states…”
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Local transport measurements on epitaxial graphene
Published in Applied physics letters (09-09-2013)“…Growth of large-scale graphene is still accompanied by imperfections. By means of a four-tip scanning tunneling and electron microscope (4-tip STM/SEM), the…”
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Orbital selective coupling between Ni adatoms and graphene Dirac electrons
Published in Physical review. B, Condensed matter and materials physics (11-04-2012)“…We investigate the coupling of Ni monomers and tri mers to graphene by means of atomically resolved scanning tunneling microscopy (STM). The precise adsorption…”
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Large area quasi-free standing monolayer graphene on 3C-SiC(111)
Published in Applied physics letters (22-08-2011)“…Large scale, homogeneous quasi-free standing monolayer graphene is obtained on cubic silicon carbide, i.e., the 3C-SiC(111) surface, which represents an…”
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