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Interaction strengths in cuprates from the inelastic neutron-scattering measurements

2010/06/07 by Zlatko Koinov, Z. Koinov, Koinov, Z.
Chemistry · Engineering · Environmental Science · Physics and Astronomy · #FOS: Physical sciences #Inorganic Fluorides and Related Compounds #Methane Hydrates and Related Phenomena #Spacecraft and Cryogenic Technologies #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.1006.1387

openalex publication_date 2010/06/07 · arxiv created 2010/08/27 · arxiv updated 2010/08/31 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The t-U-V-J model is used to describe the positions of the experimental peaks associated with commensurate and incommensurate structure of the magnetic susceptibility probed by neutron scattering in cuprate compounds. Assuming that the tight-binding form of the mean-field electron energy and the maximum gap can be obtained by fitting the angle-resolved photoemission spectroscopy (ARPES) data, we have determined the strengths of the on-site repulsive interaction U, the spin-independent attractive interaction V and the spin-dependent antiferromagnetic interaction J from the positions of the commensurate and incommensurate peaks.

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