Observation of HOPG by STM and contact AFM in various gas atmospheres under pressures up to 1.1 MPa

Yasumasa Suzuki, Hirotoshi Enoki, Etsuo Akiba

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

Apparatus comprising a scanning tunneling microscopy (STM) and an atomic force microscopy (AFM) has been developed for use under supra-atmospheres. Observations of highly oriented pyrolytic graphite (HOPG) were carried out by STM and contact AFM operating in air and various gas atmospheres (hydrogen, helium, neon and argon) under pressures up to 1.1 MPa. Atomic resolution images of the HOPG were obtained by STM in all the gas atmospheres studied. However, it was found that the presence of water vapor gave rise to a noise current at increased pressures. Using contact AFM, the atomic resolution in an argon atmosphere decreased with increasing pressure, while atomic images were obtained under the other gas atmospheres at 1.1 MPa.

本文言語英語
ページ(範囲)226-232
ページ数7
ジャーナルUltramicroscopy
104
3-4
DOI
出版ステータス出版済み - 10 2005
外部発表はい

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 器械工学

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