arXiv
Open Access
2007
Current-induced cleaning of graphene
J. Moser
A. Barreiro
A. Bachtold
Abstrak
A simple yet highly reproducible method to suppress contamination of graphene at low temperature inside the cryostat is presented. The method consists of applying a current of several mA through the graphene device, which is here typically a few $μ$m wide. This ultra-high current density is shown to remove contamination adsorbed on the surface. This method is well suited for quantum electron transport studies of undoped graphene devices, and its utility is demonstrated here by measuring the anomalous quantum Hall effect.
Topik & Kata Kunci
Penulis (3)
J
J. Moser
A
A. Barreiro
A
A. Bachtold
Akses Cepat
Informasi Jurnal
- Tahun Terbit
- 2007
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- en
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- arXiv
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- Open Access ✓