Magneto-optical study of n -type modulation-doped ZnO/ Mgx Zn1-x O single quantum well structures

T. Makino, Y. Furuta, Y. Segawa, A. Tsukazaki, A. Ohtomo, Y. Hirayama, R. Shen, S. Takeyama, Y. Takagi, M. Kawasaki

研究成果: Article査読

9 被引用数 (Scopus)

抄録

We report on the effect of electron injection on the magneto-optical properties of MgZnO/ZnO(5 nm)/MgZnO single quantum wells (SQWs) by embedding a Ga delta-doped layer in one of the MgZnO barriers. Approaching the delta-doped layer to the SQW resulted in a photoluminescence (PL) blueshift due to the screening of internal polarization field by the injected electrons. Circular polarization in PL was enhanced by a magnetic field up to 50 T with a Faraday configuration. The observed Zeeman splitting and the degree of circular polarization in the magnetic field revealed that the PL originates from the negatively charged excitons X-.

本文言語English
論文番号155333
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
80
15
DOI
出版ステータスPublished - 2009 10 30

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

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