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Effects of Digital Doping of Mn on Giant Magneto-Optical Properties of Zn1−x Mn x Se Quantum Wells

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Abstract

We have studied effects of the digital-doping profile of MnSe layers on the giant magneto-optical properties in Zn1−x Mn x Se-based quantum wells. The giant Zeeman shift energy increases monotonically with increasing spatial overlap of the exciton wavefunction with the 0.5 monatomic-thick effective Mn layers at the interfaces between the digitally doped MnSe layers and nonmagnetic ZnSe layers. Also, a field-induced enhancement factor of the excitonic photoluminescence intensity, because of the suppression of the exciton energy transfer into the d-d transition of Mn-ions, increases linearly with increasing such overlap of the exciton wavefunction with the effective Mn layer. In addition, the formation energy as large as 18.6 meV and the formation time of the magnetic polaron are determined, which are also affected by the digital-doping profile.

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Authors and Affiliations

  1. IMRAM, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, 980-8577, Japan

    E. Nakayama, T. Uchida, I. Souma, T. Tomita, Z. H. Chen, A. Murayama & Y. Oka

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  1. E. Nakayama
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  2. T. Uchida
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  3. I. Souma
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  4. T. Tomita
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  5. Z. H. Chen
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  6. A. Murayama
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  7. Y. Oka
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Nakayama, E., Uchida, T., Souma, I. et al. Effects of Digital Doping of Mn on Giant Magneto-Optical Properties of Zn1−x Mn x Se Quantum Wells. Journal of Superconductivity 16, 407–410 (2003). https://doi.org/10.1023/A:1023658629614

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  • DOI: https://doi.org/10.1023/A:1023658629614

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