Yukiko Oyama
University of Tokyo
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Publication
Featured researches published by Yukiko Oyama.
Applied Physics Express | 2009
Takashi Tsuchiya; Yukiko Oyama; Shogo Miyoshi; Shu Yamaguchi
Both ac impedance and dc polarization have been measured to investigate the switching property of a Cu2S gapless type atomic switch with two-probe cells composed of asymmetric configuration of ion blocking and reversible electrodes in addition to symmetric one with reversible electrodes. Strong nonlinear p-type conductivity in current–voltage (I–V) characteristics and a marked change of overall ac impedance with the variation of applied dc bias voltage observed are attributed to the nonstoichiometry induced carrier modification in a Cu2S thin film modulated by the Cu vacancy migration under the presence of an electrical potential field.
Solid State Ionics | 2008
Rinlee Butch Cervera; Yukiko Oyama; Shogo Miyoshi; Kiyoshi Kobayashi; Takehiko Yagi; Shu Yamaguchi
Solid State Ionics | 2007
Rinlee Butch Cervera; Yukiko Oyama; Shu Yamaguchi
Chemistry of Materials | 2014
Shogo Miyoshi; Yasuaki Akao; Naoaki Kuwata; Junichi Kawamura; Yukiko Oyama; Takehiko Yagi; Shu Yamaguchi
Solid State Ionics | 2012
Shogo Miyoshi; Yasuaki Akao; Naoaki Kuwata; Junichi Kawamura; Yukiko Oyama; Takehiko Yagi; Shu Yamaguchi
Solid State Ionics | 2008
Kiyoshi Kobayashi; Yoshitaka Matsushita; Naoki Igawa; Fujio Izumi; Chikashi Nishimura; Shogo Miyoshi; Yukiko Oyama; Shu Yamaguchi
Solid State Ionics | 2007
Shin Mimuro; Shuta Shibako; Yukiko Oyama; Kiyoshi Kobayashi; Tohru Higuchi; Shik Shin; Shu Yamaguchi
Solid State Ionics | 2011
Yukiko Oyama; Akira Kojima; Xinyu Li; Rinlee Butch Cervera; Kazuhiko Tanaka; Shu Yamaguchi
Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment | 2009
Yoshitaka Matsushita; Fujio Izumi; Kiyoshi Kobayashi; Naoki Igawa; Hideaki Kitazawa; Yukiko Oyama; Shogo Miyoshi; Shu Yamaguchi
Solid State Ionics | 2004
Noriaki Yamada; Yukiko Oyama; Tohru Higuchi; Shu Yamaguchi
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