Two-electron exchange between impurity centers of tin in PbSzSe1–z solid solutions
- 作者: Marchenko A.1, Egorova A.2, Rasnyuk E.1, Seregin P.1, Shaldenkova A.1
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隶属关系:
- Herzen Russian State Pedagogical University
- St. Petersburg Mining University
- 期: 卷 43, 编号 1 (2017)
- 页面: 53-62
- 栏目: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/215863
- DOI: https://doi.org/10.1134/S1087659617010084
- ID: 215863
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详细
Using emission Mössbauer spectroscopy on 119mmSn(119mSn) and 119Sb(119mSn) isotopes, the electron exchange process between neutral and doubly ionized U– tin centers is studied in partially compensated PbSzSe1–z solid solutions. The activation energy of this process for compositions with z ≈ 1 is comparable to the deposition depth of the tin energy levels in the band gap of PbS (~0.11(1) eV, and for compositions with z ≈ 1, it is comparable with the correlation energy of donor U– tin centers in PbSe (~0.05(1) eV). For all compositions of solid solutions, the exchange is realized by the simultaneous transfer of two electrons with the use of the delocalized states of the valence band.
作者简介
A. Marchenko
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
俄罗斯联邦, St. Petersburg, 191186
A. Egorova
St. Petersburg Mining University
Email: ppseregin@mail.ru
俄罗斯联邦, St. Petersburg, 199106
E. Rasnyuk
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
俄罗斯联邦, St. Petersburg, 191186
P. Seregin
Herzen Russian State Pedagogical University
编辑信件的主要联系方式.
Email: ppseregin@mail.ru
俄罗斯联邦, St. Petersburg, 191186
A. Shaldenkova
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
俄罗斯联邦, St. Petersburg, 191186