Abstract
The Projector Quantum Monte Carlo Method is applied to examine the existence of superconductivity in the Apex-Oxygen-Model which describes the physics of the correlated carriers in the CuO2-planes coupled to the anharmonic vibrations of the apex oxygen in the hightemperature superconductors. The simulations show clear evidence for extendeds-wave superconductivity in the 100 K temperature range for realistic choice of coupling parameters.
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Frick, M., Morgenstern, I. & von der Linden, W. High-temperature superconductivity in the apex-oxygen model: a quantum Monte Carlo study. Z. Physik B - Condensed Matter 82, 339–345 (1991). https://doi.org/10.1007/BF01357176
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DOI: https://doi.org/10.1007/BF01357176