Tunable two-dimensional electron gas at the surface of thermoelectric material In4Se3

K. Fukutani, T. Sato, P. V. Galiy, K. Sugawara, T. Takahashi

研究成果: Article査読

11 被引用数 (Scopus)

抄録

We report the discovery of two-dimensional electron gas (2DEG) at the surface of thermoelectric material In4Se3 by angle-resolved photoemission spectroscopy. The observed 2DEG exhibits a nearly isotropic band dispersion with a considerably small effective mass of m∗=0.16 m0, and its carrier density shows a significant temperature dependence, leading to unconventional metal-semiconductor transition at the surface. The observed wide-range thermal tunability of 2DEG in In4Se3 gives rise to additional degrees of freedom to better control the surface carriers of semiconductors.

本文言語English
論文番号205156
ジャーナルPhysical Review B
93
20
DOI
出版ステータスPublished - 2016 5 31

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

フィンガープリント

「Tunable two-dimensional electron gas at the surface of thermoelectric material In4Se3」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル