Measurement of the Casimir force between a spherical gold tip and Si(111)-(7 x 7) surfaces

Yoshida, Naoki; Higashino, Kazuhiko; Sueoka, Kazuhisa

Japanese Journal of Applied Physics (JJAP), 2016, 55(8), 08NB20-1-08NB20-5

Permalink : https://hdl.handle.net/2115/66617

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アクセス権	open access
URI	https://hdl.handle.net/2115/66617
タイトル	Measurement of the Casimir force between a spherical gold tip and Si(111)-(7 x 7) surfaces
著者	Yoshida, Naoki ; Higashino, Kazuhiko ; Sueoka, Kazuhisa
著者名 Yoshida, Naoki
著者名 Higashino, Kazuhiko
e-Rad_Researcher 60250479 著者名 Sueoka, Kazuhisa
言語	英語
発行日	2016-08
出版者	IOP Publishing
収録物名	Japanese Journal of Applied Physics (JJAP)
巻(号)	55(8)
ページ	08NB20-1-08NB20-5
抄録	We have performed the measurement of Casimir force between a spherical Au tip and an atomically flat Si(111)-(7 x 7) surface at tip-sample distances ranging from 15 to 50nm in an ultrahigh vacuum of 1.5 x 10(-8)Pa by frequency-modulation atomic force microscopy. Atomically flat Si(111) surfaces provided by the ultrahigh-vacuum condition and a degassed Au tip reduce the contact potential difference that must be compensated. These experimental conditions led to the elucidation of the distance dependence of the Casimir force down to the distance of 15 nm. The observed distance dependence still follows a theory provided by Chen et al. [Phys. Rev. A 74, 022103 (2006)] within these distances. (C) 2016 The Japan Society of Applied Physics
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	© 2016 The Japan Society of Applied Physics
PISSN	0021-4922
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.7567/JJAP.55.08NB20