Hall effect and two-dimensional electron gas in black phosphorus

M. Baba, Y. Nakamura, Y. Takeda, K. Shibata, A. Morita, Y. Koike, T. Fukase

研究成果: Article査読

23 被引用数 (Scopus)

抄録

The Hall coefficient and electric conductivity of black phosphorus prepared by the bismuth-flux method were measured at low temperatures. It is found that the conductivity shows log T-like behaviour below about 5 K and the Hall coefficient changes its sign from plus to minus at around 7 K with decreasing temperature. These results can be analysed successfully on the basis of a three-carrier model, in which bulk holes, variable-range-hopping holes and two-dimensional electrons take part in the electric conduction at low temperatures, except in the case of strong magnetic fields below 7 K. The present analysis supports the fact that magneto-electric properties observed at low temperatures in black phosphorus crystals originate from the 2D Anderson localization in an inversion layer on the surface.

本文言語English
論文番号018
ページ(範囲)1535-1544
ページ数10
ジャーナルJournal of Physics: Condensed Matter
4
6
DOI
出版ステータスPublished - 1992 12 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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