Observation of cyclotron resonance and measurement of the hole mass in optimally doped La2xSrxCuO4

K. W. Post, A. Legros, D. G. Rickel, J. Singleton, R. D. McDonald, Xi He, I. Božović, X. Xu, X. Shi, N. P. Armitage, and S. A. Crooker
Phys. Rev. B 103, 134515 – Published 26 April 2021
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Abstract

Using time-domain terahertz spectroscopy in pulsed magnetic fields up to 31 T, we measure the terahertz optical conductivity in an optimally doped thin film of the high-temperature superconducting cuprate La1.84Sr0.16CuO4. We observe systematic changes in the circularly polarized complex optical conductivity that are consistent with cyclotron absorption of p-type charge carriers characterized by a cyclotron mass of 4.9me±0.8me and a scattering rate that increases with magnetic field. These results open the door to studies aimed at characterizing the degree to which electron-electron interactions influence carrier masses in cuprate superconductors.

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  • Received 4 June 2020
  • Revised 16 March 2021
  • Accepted 13 April 2021

DOI:https://doi.org/10.1103/PhysRevB.103.134515

©2021 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

K. W. Post1, A. Legros2, D. G. Rickel1, J. Singleton1, R. D. McDonald1, Xi He3,4, I. Božović3,4, X. Xu3,5, X. Shi5, N. P. Armitage2,6,*, and S. A. Crooker1,†

  • 1National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
  • 2Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA
  • 3Brookhaven National Laboratory, Upton, New York 11973, USA
  • 4Department of Chemistry, Yale University, New Haven, Connecticut 06520, USA
  • 5Department of Physics, University of Texas at Dallas, Richardson, Texas 75080, USA
  • 6Canadian Institute for Advanced Research, Toronto, Ontario, Canada M5G 1Z8

  • *Corresponding author: npa@jhu.edu
  • Corresponding author: crooker@lanl.gov

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Issue

Vol. 103, Iss. 13 — 1 April 2021

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