New magnetic coherence effect in superconducting La2-xSrxCuO4

T.E. Mason; A. Schröder; G. Aeppli; H.A. Mook; S.M. Hayden

doi:10.1103/PhysRevLett.77.1604

New magnetic coherence effect in superconducting La₂_-_xSr_xCuO₄

T.E. Mason, A. Schröder, G. Aeppli, H.A. Mook, S.M. Hayden

Research output: Contribution to journal › Journal article › Research

Abstract

We have used inelastic neutron scattering to examine the magnetic fluctuations at intermediate frequencies in the simplest high temperature superconductor, La2-xSrxCuO4. The suppression of the low energy magnetic response in the superconducting state is accompanied by an increase in the response at higher energies. Just above a threshold energy of similar to 7 meV there is additional scattering present below T-c which is characterized by an extraordinarily long coherence length, in excess of 50 Angstrom.

Original language	English
Journal	Physical Review Letters
Volume	77
Issue number	8
Pages (from-to)	1604-1607
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.77.1604
Publication status	Published - 1996

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title = "New magnetic coherence effect in superconducting La2-xSrxCuO4",

abstract = "We have used inelastic neutron scattering to examine the magnetic fluctuations at intermediate frequencies in the simplest high temperature superconductor, La2-xSrxCuO4. The suppression of the low energy magnetic response in the superconducting state is accompanied by an increase in the response at higher energies. Just above a threshold energy of similar to 7 meV there is additional scattering present below T-c which is characterized by an extraordinarily long coherence length, in excess of 50 Angstrom. ",

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AU - Mook, H.A.

AU - Hayden, S.M.

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AB - We have used inelastic neutron scattering to examine the magnetic fluctuations at intermediate frequencies in the simplest high temperature superconductor, La2-xSrxCuO4. The suppression of the low energy magnetic response in the superconducting state is accompanied by an increase in the response at higher energies. Just above a threshold energy of similar to 7 meV there is additional scattering present below T-c which is characterized by an extraordinarily long coherence length, in excess of 50 Angstrom.

KW - Materialer med særlige fysiske og kemiske egenskaber; Nye funktionelle materialer

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