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)3nanocrystals in a fluorophosphate glass matrix. Using optical spin orientation and spin depolarization with a radio frequency field, we measure longitudinal spin relaxation time, T1, reaching several hundreds of microseconds at low temperatures. This time T1corresponds to a spin state with a small g factor, which we attribute to a weakly exchange-coupled electron-hole pair with antiparallel spins.

Original languageEnglish
Pages (from-to)4583-4588
Number of pages6
JournalNano Letters
Volume22
Issue number11
DOIs
StatePublished - 8 Jun 2022

    Research areas

  • CsPb(Cl,Br), Faraday rotation, g factor, longitudinal spin relaxation, Perovskite nanocrystals, pump-probe, CsPb(Cl,Br)3

    Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)

ID: 99853894