Magnetic Field Dependence of the Transverse Plasmon in SmLa0.8Sr0.2CuO4δ

A. Pimenov, A. Loidl, D. Dulić, D. van der Marel, I. M. Sutjahja, and A. A. Menovsky
Phys. Rev. Lett. 87, 177003 – Published 5 October 2001
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Abstract

The magnetic field and temperature dependence of the transverse and longitudinal plasmons in SmLa0.8Sr0.2CuO4δ have been investigated. A transition between a vortex-glass and a vortex-liquid regime, which revealed different field dependencies of the resonance frequencies, could be clearly observed. The positions and the spectral weights of the plasmons were successfully described using the multilayer model [Phys. Rev. B 64, 024530 (2001)], which takes the compressibility of the electronic liquid into account. The absolute value of the compressibility is close to that of a two-dimensional noninteracting electron gas.

  • Received 15 July 2001

DOI:https://doi.org/10.1103/PhysRevLett.87.177003

©2001 American Physical Society

Authors & Affiliations

A. Pimenov1, A. Loidl1, D. Dulić2, D. van der Marel2, I. M. Sutjahja3, and A. A. Menovsky3

  • 1Experimentalphysik V, EKM, Universität Augsburg, 86135 Augsburg, Germany
  • 2Laboratory of Solid State Physics, Materials Science Centre, 9747 AG Groningen, The Netherlands
  • 3Van der Waals-Zeeman Institut, University of Amsterdam, The Netherlands

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Vol. 87, Iss. 17 — 22 October 2001

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