| Autor: |
Barreto, Lucas, Perkins, Edward, Johannsen, Jens, Ulstrup, Søren, Fromm, Felix, Raidel, Christian, Seyller, Thomas, Hofmann, Philip |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters,102, 033110 (2013) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.4789508 |
| Popis: |
The electronic transport properties of epitaxial monolayer graphene (MLG) and hydrogen-intercalated quasi free-standing bilayer graphene (QFBLG) on SiC(0001) are investigated by micro multi-point probes. Using a probe with 12 contacts, we perform four-point probe measurements with the possibility to effectively vary the contact spacing over more than one order of magnitude, allowing us to establish that the transport is purely two-dimensional. Combined with the carrier density obtained by angle-resolved photoemission spectroscopy, we find the room temperature mobility of MLG to be (870+-120)cm2/Vs. The transport in QFBLG is also found to be two-dimensional with a mobility of (1600+-160) cm2/Vs. |
| Databáze: |
arXiv |
| Externí odkaz: |
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