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Title
Japanese: 
English:Magneto-optical study of n-type modulation-doped ZnO/MgxZn(1-x)O single quantum well structures 
Author
Japanese: 牧野 哲征, 古田 洋平, 瀬川 勇三朗, 塚崎 敦, 大友 明, 平山 康博, 沈 睿, 嶽山 正二郎, 高木 芳弘, 川崎 雅司.  
English: T. Makino, Y. Furuta, Y. Segawa, A. Tsukazaki, A. Ohtomo, Y. Hirayama, R. Shen, S. Takeyama, Y. Takagi, M. Kawasaki.  
Language English 
Journal/Book name
Japanese: 
English:Physical Review B 
Volume, Number, Page Vol. 80    No. 15    155333-1-5
Published date Oct. 2009 
Publisher
Japanese: 
English: 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
File
Official URL <Go to ISI>://000271352000108
 
DOI https://doi.org/10.1103/PhysRevB.80.155333
Abstract We report on the effect of electron injection on the magneto-optical properties of MgZnO/ZnO(5nm)/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-.

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