Neutron-scattering Measurements As A Test of Theories of High-temperature Superconductivity

TitleNeutron-scattering Measurements As A Test of Theories of High-temperature Superconductivity
Publication TypeJournal Article
Year of Publication1993
AuthorsBénard, P, Chen, L, Tremblay, A-MS
JournalPhysical Review B
Volume47
Pagination589–592
Abstract

It is shown that the Hubbard model in the intermediate-coupling regime can qualitatively explain neutron-scattering experiments in La2-xSrxCuO4 only if there are strong magnetic fluctuations in the system. By contrast, the marginal-Fermi-liquid approach explains the data without appealing at all to strong magnetic fluctuations. It is shown that the strength of the magnetic fluctuations can be estimated by detecting incommensurate peaks located near the zone center using neutron-scattering experiments.

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