ElectronicRainan scattering in cuprate superconductors and parent insulating phases

M. V. Klein; R. Liu; D. Salamon; G. Blumberg; D. Reznik; S. L. Cooper; W. C. Lee; D. M. Ginsberg; S. W. Cheong

doi:10.1117/12.182677

ElectronicRainan scattering in cuprate superconductors and parent insulating phases

M. V. Klein, R. Liu, D. Salamon, G. Blumberg, D. Reznik, S. L. Cooper, W. C. Lee, D. M. Ginsberg, S. W. Cheong

Research output: Contribution to journal › Conference article › peer-review

Abstract

Raman scattering from charge and spin excitations in cuprates is reviewed. The two-magnon resonance Raman profile is used to determine the most probable energy for photon-Assisted charge transfer leading to exchange between two spins. The difference between this energy and that for absorption is attributed to spin relaxation (spin polaron) effects. Two-magnon spectra in superconducting cuprates are presented. It is argued that their presence is evidence that the antiferromagnetic correlation length is equal to or greater than three lattice constants. The recently-discovered Raman-Active excitons are described and possible assignments of them are discussed. It is pointed out that in highly correlated metals and insulators, the mechanisms for light scattering that are familiar for doped semiconductors or conventional metals are not necessarily the only ones that are operative.

Original language	English (US)
Pages (from-to)	100-108
Number of pages	9
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	2158
DOIs	https://doi.org/10.1117/12.182677
State	Published - Aug 10 1994
Event	Oxide Superconductor Physics and Nano-Engineering 1994 - Los Angeles, United States Duration: Jan 23 1994 → Jan 29 1994

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.182677

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title = "ElectronicRainan scattering in cuprate superconductors and parent insulating phases",

abstract = "Raman scattering from charge and spin excitations in cuprates is reviewed. The two-magnon resonance Raman profile is used to determine the most probable energy for photon-Assisted charge transfer leading to exchange between two spins. The difference between this energy and that for absorption is attributed to spin relaxation (spin polaron) effects. Two-magnon spectra in superconducting cuprates are presented. It is argued that their presence is evidence that the antiferromagnetic correlation length is equal to or greater than three lattice constants. The recently-discovered Raman-Active excitons are described and possible assignments of them are discussed. It is pointed out that in highly correlated metals and insulators, the mechanisms for light scattering that are familiar for doped semiconductors or conventional metals are not necessarily the only ones that are operative.",

author = "Klein, {M. V.} and R. Liu and D. Salamon and G. Blumberg and D. Reznik and Cooper, {S. L.} and Lee, {W. C.} and Ginsberg, {D. M.} and Cheong, {S. W.}",

note = "Funding Information: We thank D. Frenkel, A. F. Goncharev, A. A. Maksimov, R. L Martin, R. M. Martin, A. K. McMahan, D. Pines, A. Sokol, I. I. Tartakovskii, and P. Wiegmann, for helpful discussions; M. Karlow for assistance with optical-properties measurements; and B. Veal and B. Dabrowski for samples. This work was supported by the National Science Foundation through the Science and Technology Center for Superconductivity under DMR 91-20000 and by the NSF under DMR 90-17156. Publisher Copyright: {\textcopyright} 1994 Proceedings of SPIE - The International Society for Optical Engineering. All rights reserved.; Oxide Superconductor Physics and Nano-Engineering 1994 ; Conference date: 23-01-1994 Through 29-01-1994",

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doi = "10.1117/12.182677",

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T1 - ElectronicRainan scattering in cuprate superconductors and parent insulating phases

AU - Klein, M. V.

AU - Liu, R.

AU - Salamon, D.

AU - Blumberg, G.

AU - Reznik, D.

AU - Cooper, S. L.

AU - Lee, W. C.

AU - Ginsberg, D. M.

AU - Cheong, S. W.

N1 - Funding Information: We thank D. Frenkel, A. F. Goncharev, A. A. Maksimov, R. L Martin, R. M. Martin, A. K. McMahan, D. Pines, A. Sokol, I. I. Tartakovskii, and P. Wiegmann, for helpful discussions; M. Karlow for assistance with optical-properties measurements; and B. Veal and B. Dabrowski for samples. This work was supported by the National Science Foundation through the Science and Technology Center for Superconductivity under DMR 91-20000 and by the NSF under DMR 90-17156. Publisher Copyright: © 1994 Proceedings of SPIE - The International Society for Optical Engineering. All rights reserved.

PY - 1994/8/10

Y1 - 1994/8/10

N2 - Raman scattering from charge and spin excitations in cuprates is reviewed. The two-magnon resonance Raman profile is used to determine the most probable energy for photon-Assisted charge transfer leading to exchange between two spins. The difference between this energy and that for absorption is attributed to spin relaxation (spin polaron) effects. Two-magnon spectra in superconducting cuprates are presented. It is argued that their presence is evidence that the antiferromagnetic correlation length is equal to or greater than three lattice constants. The recently-discovered Raman-Active excitons are described and possible assignments of them are discussed. It is pointed out that in highly correlated metals and insulators, the mechanisms for light scattering that are familiar for doped semiconductors or conventional metals are not necessarily the only ones that are operative.

AB - Raman scattering from charge and spin excitations in cuprates is reviewed. The two-magnon resonance Raman profile is used to determine the most probable energy for photon-Assisted charge transfer leading to exchange between two spins. The difference between this energy and that for absorption is attributed to spin relaxation (spin polaron) effects. Two-magnon spectra in superconducting cuprates are presented. It is argued that their presence is evidence that the antiferromagnetic correlation length is equal to or greater than three lattice constants. The recently-discovered Raman-Active excitons are described and possible assignments of them are discussed. It is pointed out that in highly correlated metals and insulators, the mechanisms for light scattering that are familiar for doped semiconductors or conventional metals are not necessarily the only ones that are operative.

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ElectronicRainan scattering in cuprate superconductors and parent insulating phases

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