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フルカワ カズアキ
FURUKAWA Kazuaki
古川 一暁 所属 理工学部 総合理工学科 職種 教授 |
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| 言語種別 | 英語 |
| 発行・発表の年月 | 2018/05 |
| 形態種別 | 学術雑誌 |
| 査読 | 査読あり |
| 標題 | Relaxation of Plasma Carriers in Graphene: An Approach by Frequency-Dependent Optical Conductivity Measurement |
| 執筆形態 | 共著 |
| 掲載誌名 | Advanced Optical Materials |
| 掲載区分 | 国外 |
| 出版社・発行元 | Wiley-VCH |
| 巻・号・頁 | 6,pp.1701402 |
| 総ページ数 | 7 |
| 著者・共著者 | Wookjin Choi, Hayate Nishiyama, Yui Ogawa, Yuko Ueno, Kazuaki Furukawa, Tomohiro Takeuchi, Yusuke Tsutsui, Tsuneaki Sakurai, and Shu Seki |
| 概要 | The relaxation time and mobility of electrons on graphene are deduced quantitatively by complex permittivity analysis with microwave dielectric loss spectroscopy. Hexagonal graphene sheets with uniform domain sizes from 6 to 30 μm are employed to determine the factors for carrier relaxation at the intradomain and grain boundaries. The changes in the complex permittivity by carrier injections clearly show an evidence of plasma carriers in graphene. |