Charged Excitons and Biexcitons in CdZnTe/(Cd,Zn,Mn)Te Quantum Wells in Pulse Magnetic Fields(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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概要

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• We have studied exciton complexes such as charged excitons and biexcitons in dilute magnetic semiconductor Cd_<1-x>Zn_xTe/Cd_<1-x-y>Zn_xMn_yTe (x=0.07, y=0.43) quantum wells (well widths 4 and 9nm). Laser excitation power dependence and time-resolved photoluminescence (PL) showed unique features related to excitons, charged excitons, and biexcitons. Four-wave-mixing spectroscopy with different choices of polarized incident light exhibited beating signals arising from exciton-biexciton interaction. Circular polarized PL was measured in magnetic fields of up to 42T using a pulse magnet. The observed Zeeman splitting and the degree of circular polarization in magnetic fields revealed that the formation of biexcitons is quenched upon applying a magnetic field, and PL from the charged excitons was preserved up to the highest magnetic field.

• 社団法人日本物理学会の論文
• 2008-04-15

著者

• Karczewski G

  Institute Of Physics Polish Academy Of Sciences

• Karczewski Grzegorz

  Institute Of Physics Polish Academy Of Sciences Al.

• Kossut J

  Institute Of Physics Polish Academy Of Sciences

• Kossut Jacek

  Institute Of Physics Polish Academy Of Science

• Wojtowicz T

  Institute Of Physics Polish Academy Of Sciences

• TAKEYAMA Shojiro

  Institute for Solid State Physics, University of Tokyo

• NATORI Yoshiaki

  Institute for Solid State Physics, University of Tokyo

• HIRAYAMA Yasuhiro

  Institute for Solid State Physics, University of Tokyo

• KOJIMA Eiji

  Institute for Solid State Physics, University of Tokyo

• ARISHIMA Yu

  Graduate School of Science and Technology, Chiba University

• MINO Hirofumi

  Graduate School of Science and Technology, Chiba University

• KARCZEWSKI Grzegosz

  Institute of Physics, Polish Academy of Sciences

• WOJTOWICZ Tomasz

  Institute of Physics, Polish Academy of Sciences

• Takeyama S

  Institute For Solid State Physics University Of Tokyo

• Takeyama Shojiro

  Institute For Solid State Physics University Of Tokyo

• Takeyama Shojiro

  Instilute For Solid State Physics University Of Tokyo

• Kojima Eiji

  Institute For Solid State Physics University Of Tokyo

• Wojtowicz Tomasz

  Institute Of Physics Polish Academy Of Sciences

• Arishima Yu

  Graduate School Of Science And Technology Chiba University

• Mino Hirofumi

  Graduate School Of Science And Technology Chiba University

• Natori Yoshiaki

  Institute For Solid State Physics University Of Tokyo

• Hirayama Yasuhiro

  Institute For Solid State Physics University Of Tokyo

関連論文

• Charged Excitons and Biexcitons in CdZnTe/(Cd,Zn,Mn)Te Quantum Wells in Pulse Magnetic Fields(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Magneto-Optical Four-Wave-Mixing Studies of an Exciton-Biexciton System in a CdMnTe/CdTe/CdMgTe Single Quantum Well(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Pressure Induced Quenching of Exciton Photoluminescence and its Recovers by Magnetic Field in Cadmium Telluride/Cadmium Manganese Telluride Quantum Wells
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