Faculté des sciences

Charge dynamics of doped holes in high Tc cuprate superconductors: A clue from optical conductivity

Mishchenko, A. S. ; Nagaosa, N. ; Shen, Z.-X. ; Filippis, G. De ; Cataudella, V. ; Devereaux, T. P. ; Bernhard, Christian ; Kim, Kyung Wan ; Zaanen, J.

In: Physical Review Letters, 2008, vol. 100, no. 16, p. 166401

The charge dynamics in weakly hole doped high temperature superconductors is studied in terms of the accurate numerical solution to a model of a single hole interacting with a quantum lattice in an antiferromagnetic background, and accurate far-infrared ellipsometry measurements. The experimentally observed two electronic bands in the infrared spectrum can be identified in terms of the interplay... Plus

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    Summary
    The charge dynamics in weakly hole doped high temperature superconductors is studied in terms of the accurate numerical solution to a model of a single hole interacting with a quantum lattice in an antiferromagnetic background, and accurate far-infrared ellipsometry measurements. The experimentally observed two electronic bands in the infrared spectrum can be identified in terms of the interplay between the electron correlation and electron-phonon interaction resolving the long standing mystery of the midinfrared band.