Fumiki Sakai

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Japanese Journal of Applied Physics | 1987

Hiroshi Bando; Hiroshi Tokumoto; Wataru Mizutani; Kazutoshi Watanabe; Makoto Okano; Masatoshi Ono; Hiroshi Murakami; Shigeo Okayama; Yuichi Ono; Shigeru Wakiyama; Fumiki Sakai; Kazuhiro Endo; Koji Kajimura

Anomalously large surface corrugation of 2H-NbSe2 crystal was observed by scanning tunneling microscopy (STM). Besides mounds representing the Se atoms, hollow sites and Nb-atom sites clearly appeared as dips and saddle points, respectively. The lateral resolution was proved to be better than 0.2 nm. The large corrugation amplitude was attributed to the effect of atomic force between the tip and the sample.

Japanese Journal of Applied Physics | 1986

Hiroshi Tokumoto; Hiroshi Bando; Wataru Mizutani; Makoto Okano; Masatoshi Ono; Hiroshi Murakami; Shigeo Okayama; Yuichi Ono; Kazutoshi Watanabe; Shigeru Wakiyama; Fumiki Sakai; Kazuhiro Endo; Koji Kajimura

The atomic image of 2H-NbSe2 surface was successfully recorded with a scanning tunneling microscope (STM) at room temperature. The trigonal pattern of the image is in good agreement with the results of the X-ray diffraction experiments. The STM apparatus developed here showed resolutions of 0.3 nm in the lateral scale and 0.05 nm in the vertical scale.

Archive | 1988