Resonant two-magnon Raman scattering in cuprate antiferromagnetic insulators

G. Blumberg; P. Abbamonte; M. Klein; W. Lee; D. Ginsberg

doi:10.1103/PhysRevB.53.R11930

Resonant two-magnon Raman scattering in cuprate antiferromagnetic insulators

G. Blumberg, P. Abbamonte, M. Klein, W. Lee, D. Ginsberg

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Abstract

We present results of low-temperature two-magnon resonance Raman excitation profile measurements for single-layer Sr₂CuO₂Cl₂ and bilayer YBa₂Cu₃O₆+δ antiferromagnets over the excitation region from 1.65 to 3.05 eV. These data reveal composite structure of the two-magnon line shape and strong nonmonotic dependence of the scattering intensity on excitation energy. We analyze these data using the triple resonance theory of Chubukov and Frenkel [Phys. Rev. Lett. 74, 3057 (1995)] and deduce information about magnetic interaction and band parameters in these materials.

Original language	English (US)
Pages (from-to)	R11930-R11933
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	53
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.53.R11930
State	Published - 1996

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.53.R11930

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title = "Resonant two-magnon Raman scattering in cuprate antiferromagnetic insulators",

abstract = "We present results of low-temperature two-magnon resonance Raman excitation profile measurements for single-layer Sr2CuO2Cl2 and bilayer YBa2Cu3O6+δ antiferromagnets over the excitation region from 1.65 to 3.05 eV. These data reveal composite structure of the two-magnon line shape and strong nonmonotic dependence of the scattering intensity on excitation energy. We analyze these data using the triple resonance theory of Chubukov and Frenkel [Phys. Rev. Lett. 74, 3057 (1995)] and deduce information about magnetic interaction and band parameters in these materials.",

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AU - Abbamonte, P.

AU - Klein, M.

AU - Lee, W.

AU - Ginsberg, D.

PY - 1996

Y1 - 1996

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AB - We present results of low-temperature two-magnon resonance Raman excitation profile measurements for single-layer Sr2CuO2Cl2 and bilayer YBa2Cu3O6+δ antiferromagnets over the excitation region from 1.65 to 3.05 eV. These data reveal composite structure of the two-magnon line shape and strong nonmonotic dependence of the scattering intensity on excitation energy. We analyze these data using the triple resonance theory of Chubukov and Frenkel [Phys. Rev. Lett. 74, 3057 (1995)] and deduce information about magnetic interaction and band parameters in these materials.

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Resonant two-magnon Raman scattering in cuprate antiferromagnetic insulators

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