Submillisecond Spin Relaxation in CsPb(Cl,Br)(3) Perovskite Nanocrystals in a Glass Matrix

V. Belykh Vasilii; Skorikov Mikhail L.; V. Kulebyakina EvgeniyaV. Kolobkova ElenaKuznetsova Maria S.Glazov Mikhail M.Yakovlev Dmitri R.

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Submillisecond Spin Relaxation in CsPb(Cl,Br)(3) Perovskite Nanocrystals in a Glass Matrix

机译：Submillisecond Spin Relaxation in CsPb(Cl,Br)(3) Perovskite Nanocrystals in a Glass Matrix

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摘要

Lead halide perovskite nanocrystals in a glass matrix are a promising platform for optoelectronic applications due to their excellent optical properties combined with outstanding stability against the environment. We reveal the potential of this system for spintronics by studying the electron spin properties of CsPb(Cl,Br)(3) nanocrystals in a fluorophosphate glass matrix. Using optical spin orientation and spin depolarization with a radio frequency field, we measure longitudinal spin relaxation time, T-1, reaching several hundreds of microseconds at low temperatures. This time T-1 corresponds to a spin state with a small g factor, which we attribute to a weakly exchange-coupled electron-hole pair with antiparallel spins.

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来源
《Nano letters》 |2022年第11期|4583-4588|共6页
作者
V. Belykh Vasilii; Skorikov Mikhail L.; V. Kulebyakina EvgeniyaV. Kolobkova ElenaKuznetsova Maria S.Glazov Mikhail M.Yakovlev Dmitri R.;
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作者单位

Russian Acad Sci;

Tech Univ St Petersburg;

St Petersburg State Univ;

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正文语种英语
中图分类特种结构材料;物理化学（理论化学）、化学物理学;
关键词
Perovskite nanocrystals; CsPb(Cl; Br)(3); longitudinal spin relaxation; g factor; pump-probe; Faraday rotation; CSPBBR3 QUANTUM DOTS; PRECIPITATION; EMISSION; CSPBX3; QDS; BR;

Submillisecond Spin Relaxation in CsPb(Cl,Br)(3) Perovskite Nanocrystals in a Glass Matrix

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