Atomistic simulation study of impacts of surface carrier scatterings on carrier transport in Pt nanosheets

Takahisa Tanaka, Taro Kato, Takeaki Yajima, Ken Uchida

研究成果: Contribution to journalArticle査読

抄録

The understanding of carrier transport in metal nanostructures is indispensable for the development of nanoelectronics. In particular, Pt nanostructures have been intensively studied to realize gas sensors based on adsorbate-induced surface electron scattering. Conventionally, electron scattering at the surface of metal nanostructures has been phenomenologically described by a single specularity parameter. In this work, surface electron scattering was quantitatively studied through molecular dynamics simulations, followed by density functional nonequilibrium Green’s function calculations. Although the extracted specularity parameters qualitatively agreed with empirically treated diffusive scattering at the O-covered Pt surface and specular scattering at the H-covered Pt surface, our atomistic calculation revealed an increase in resistivity owing to H adsorption on thin Pt(111) nanosheets.

本文言語英語
ジャーナルIEEE Electron Device Letters
DOI
出版ステータス受理済み/印刷中 - 2021
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
  • 電子工学および電気工学

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