Electron transport in thin graphite films: Influence of microfabrication processes

✍ Scribed by Takuya Moriki; Akinobu Kanda; Takashi Sato; Hisao Miyazaki; Shunsuke Odaka; Youiti Ootuka; Yoshinobu Aoyagi; Kazuhito Tsukagoshi

• Book ID: 104084741
• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 357 KB
• Volume: 40
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/j.physe.2007.06.005

✦ Synopsis

We experimentally investigated electron transport in thin graphite films including tens of graphene layers. The samples were fabricated by mechanical peeling of graphite, e-beam lithography, metal deposition and lift-off. For some samples, Ar-ion bombardment was carried out prior to the metal deposition to enhance the electrical transparency of the contacts. We found that the Ar-ion bombardment significantly deteriorate the samples; the electron transport changes from the semimetallic behavior to the weak-localization behavior.