Quantitative Determination of a Microscopic Mechanism of High Tc Superconductivity

1998/06/30 by Eugene Demler, Shou-Cheng Zhang
Physics and Astronomy · #cond-mat.str-el #cond-mat.supr-con

paper · pdf

published as Nature 396, 733-735 (1998) · final version, 11 pages, LATEX

arxiv created 1999/02/04 · arxiv updated 2009/11/30

Abstract

Within the t-J model of copper-oxides, the condensation energy can be related to the change in the dynamical spin structure factor between the superconducting and the normal states. By analyzing previous experimental data, we show that the change associated with the resonant neutron scattering peak found in YBa₂Cu₃O₇ can quantitatively account for the condensation energy. We argue that this analysis suggests a microscopic mechanism for high Tc superconductivity.

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