title: Electron holographic visualization of collective motion of electrons through electric field variation.
abstract: This study demonstrates the accumulation of electron-induced secondary electrons by utilizing a simple geometrical configuration of two branches of a charged insulating biomaterial. The collective motion of these secondary electrons between the branches has been visualized by analyzing the reconstructed amplitude images obtained using in situ electron holography. In order to understand the collective motion of secondary electrons, the trajectories of these electrons around the branches have also been simulated by taking into account the electric field around the charged branches on the basis of Maxwell's equations.
authors.affiliation: 1Institute of Multidisciplinary Research for Advanced Materials,Tohoku University,Sendai 980-8577,Japan.
authors.forename: Daisuke
authors.initials: D
authors.lastname: Shindo
authors.affiliation: 2RIKEN Center for Emergent Matter Science (CEMS),Wako 351-0198,Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Aizawa
authors.affiliation: 1Institute of Multidisciplinary Research for Advanced Materials,Tohoku University,Sendai 980-8577,Japan.
authors.forename: Zentaro
authors.initials: Z
authors.lastname: Akase
authors.affiliation: 2RIKEN Center for Emergent Matter Science (CEMS),Wako 351-0198,Japan.
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Tanigaki
authors.affiliation: 1Institute of Multidisciplinary Research for Advanced Materials,Tohoku University,Sendai 980-8577,Japan.
authors.forename: Yasukazu
authors.initials: Y
authors.lastname: Murakami
authors.affiliation: 3Department of Materials Science & Engineering,Dong-A University,Busan 604-714,Korea.
authors.forename: Hyun Soon
authors.initials: HS
authors.lastname: Park