Pressure Induced Quenching of Exciton Photoluminescence and its Recovery by Magnetic Field in Cadmium Telluride/Cadmium Manganese Telluride Quantum Wells

Hiroyuki Yokoi; Stanley W. Tozer; Yozo Kakudate; Shu Usuba; Yongmin Kim; Shojiro Takeyama; Tomasz Wojtowicz; Grzegorz Karczewski; Jacek Kossut

doi:10.2320/matertrans1989.41.1052

Hiroyuki Yokoi, Stanley W. Tozer, Yozo Kakudate, Shu Usuba, Yongmin Kim, Shojiro Takeyama, Tomasz Wojtowicz, Grzegorz Karczewski, Jacek Kossut

Author information

Hiroyuki Yokoi
National Institute of Materials and Chemical Research
Stanley W. Tozer
National High Magnetic Field Laboratory, Florida State University
Yozo Kakudate
National Institute of Materials and Chemical Research
Shu Usuba
National Institute of Materials and Chemical Research
Yongmin Kim
National High Magnetic Field Laboratory, Los Alamos National Laboratory
Shojiro Takeyama
Faculty of Science, Chiba University
Tomasz Wojtowicz
Institute of Physics, Polish Academy of Sciences
Grzegorz Karczewski
Institute of Physics, Polish Academy of Sciences
Jacek Kossut
Institute of Physics, Polish Academy of Sciences

Keywords: cadmium telluride/cadmium manganese telluride single quantum well, photoluminescence, exciton, pressure induced extinction, magnetic field induced luminescence, dissipation of exciton energy

JOURNAL FREE ACCESS

2000 Volume 41 Issue 8 Pages 1052-1054

DOI https://doi.org/10.2320/matertrans1989.41.1052

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Abstract

We have conducted photoluminescence (PL) measurements under hydrostatic pressures to 1.6 GPa and magnetic fields to 60 T at low temperatures in a 1.0 nm thick CdTe/Cd_1−xMn_xTe (x=0.4) single quantum well (SQW). A novel phenomenon in which an exciton PL peak from the well vanishes at 1.6 GPa and is restored by the application of a high magnetic field, was observed. We examine the possibility that the exciton energy might be dissipated to Mn 3d-states.

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