Polaron Masses in CH3NH3PbX3 Perovskites Determined by Landau Level Spectroscopy in Low Magnetic Fields

Yasuhiro Yamada, Hirofumi Mino, Takuya Kawahara, Kenichi Oto, Hidekatsu Suzuura, and Yoshihiko Kanemitsu
Phys. Rev. Lett. 126, 237401 – Published 11 June 2021
PDFHTMLExport Citation

Abstract

We investigate the electron-phonon coupling in CH3NH3PbX3 lead halide perovskites through the observation of Landau levels and high-order excitons at weak magnetic fields, where the cyclotron energy is significantly smaller than the longitudinal optical phonon energy. The reduced masses of the carriers and the exciton binding energies obtained from these data are clearly influenced by polaron formation. We analyze the field-dependent polaronic and excitonic properties, and show that they can be quantitatively reproduced by the Fröhlich large polaron model.

  • Figure
  • Figure
  • Received 5 July 2020
  • Revised 14 March 2021
  • Accepted 11 May 2021

DOI:https://doi.org/10.1103/PhysRevLett.126.237401

© 2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Yasuhiro Yamada1,*, Hirofumi Mino2, Takuya Kawahara3, Kenichi Oto1, Hidekatsu Suzuura4, and Yoshihiko Kanemitsu5,†

  • 1Graduate School of Science, Chiba University, Inage, Chiba 263-8522, Japan
  • 2Graduate School of Global and Transdisciplinary Studies, Chiba University, Inage, Chiba 263-8522, Japan
  • 3Graduate School of Education, Chiba University, Inage, Chiba 263-8522, Japan
  • 4Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
  • 5Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan

  • *Corresponding author. yasuyamada@chiba-u.jp
  • Corresponding author. kanemitu@scl.kyoto-u.ac.jp

Article Text (Subscription Required)

Click to Expand

Supplemental Material (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 126, Iss. 23 — 11 June 2021

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×