Two-electron exchange between impurity centers of tin in PbSzSe1–z solid solutions
- Авторлар: Marchenko A.1, Egorova A.2, Rasnyuk E.1, Seregin P.1, Shaldenkova A.1
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Мекемелер:
- Herzen Russian State Pedagogical University
- St. Petersburg Mining University
- Шығарылым: Том 43, № 1 (2017)
- Беттер: 53-62
- Бөлім: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/215863
- DOI: https://doi.org/10.1134/S1087659617010084
- ID: 215863
Дәйексөз келтіру
Аннотация
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.
Негізгі сөздер
Авторлар туралы
A. Marchenko
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
Ресей, St. Petersburg, 191186
A. Egorova
St. Petersburg Mining University
Email: ppseregin@mail.ru
Ресей, St. Petersburg, 199106
E. Rasnyuk
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
Ресей, St. Petersburg, 191186
P. Seregin
Herzen Russian State Pedagogical University
Хат алмасуға жауапты Автор.
Email: ppseregin@mail.ru
Ресей, St. Petersburg, 191186
A. Shaldenkova
Herzen Russian State Pedagogical University
Email: ppseregin@mail.ru
Ресей, St. Petersburg, 191186