Theory for inelastic neutron scattering in high-Tc superconductors: Doping and temperature dependence of two characteristic frequencies

I. Eremin; D. Manske; C. Joas; K. H. Bennemann

Theory for inelastic neutron scattering in high-T_c superconductors: Doping and temperature dependence of two characteristic frequencies

I. Eremin^*, D. Manske, C. Joas, K. H. Bennemann

^*Corresponding author for this work

Abstract

Assuming the exchange of antiferromagnetic spin fluctuations as the Cooper pairing mechanism we calculate the doping dependence of the resonance peak seen in inelastic neutron scattering and the magnetic coherence effect. We find that the resonance peak in the magnetic susceptibility, Im χ(q, ω), appears only in the superconducting state at ω_res and that it scales with T_c. Magnetic coherence is a result of an interplay between a d-wave order parameter and the kinematic gap ω_o. We analyze the structure of Im χ below T_c, the doping dependence of ω_o and ω_res, and the consequences for the optical conductivity.

Original language	English
Journal	International Journal of Modern Physics B
Volume	14
Issue number	29-31
Pages (from-to)	3451-3456
Number of pages	6
ISSN	0217-9792
Publication status	Published - 20 Dec 2000

Keywords

Inelastic neutron scattering
Magnetic coherence
Resonance peak
Spin-fluctuation-induced pairing mechanism

Cite this

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title = "Theory for inelastic neutron scattering in high-Tc superconductors: Doping and temperature dependence of two characteristic frequencies",

abstract = "Assuming the exchange of antiferromagnetic spin fluctuations as the Cooper pairing mechanism we calculate the doping dependence of the resonance peak seen in inelastic neutron scattering and the magnetic coherence effect. We find that the resonance peak in the magnetic susceptibility, Im χ(q, ω), appears only in the superconducting state at ωres and that it scales with Tc. Magnetic coherence is a result of an interplay between a d-wave order parameter and the kinematic gap ωo. We analyze the structure of Im χ below Tc, the doping dependence of ωo and ωres, and the consequences for the optical conductivity.",

keywords = "Inelastic neutron scattering, Magnetic coherence, Resonance peak, Spin-fluctuation-induced pairing mechanism",

author = "I. Eremin and D. Manske and C. Joas and Bennemann, {K. H.}",

year = "2000",

month = dec,

day = "20",

language = "English",

volume = "14",

pages = "3451--3456",

journal = "International Journal of Modern Physics B",

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TY - JOUR

T1 - Theory for inelastic neutron scattering in high-Tc superconductors

T2 - Doping and temperature dependence of two characteristic frequencies

AU - Eremin, I.

AU - Manske, D.

AU - Joas, C.

AU - Bennemann, K. H.

PY - 2000/12/20

Y1 - 2000/12/20

N2 - Assuming the exchange of antiferromagnetic spin fluctuations as the Cooper pairing mechanism we calculate the doping dependence of the resonance peak seen in inelastic neutron scattering and the magnetic coherence effect. We find that the resonance peak in the magnetic susceptibility, Im χ(q, ω), appears only in the superconducting state at ωres and that it scales with Tc. Magnetic coherence is a result of an interplay between a d-wave order parameter and the kinematic gap ωo. We analyze the structure of Im χ below Tc, the doping dependence of ωo and ωres, and the consequences for the optical conductivity.

AB - Assuming the exchange of antiferromagnetic spin fluctuations as the Cooper pairing mechanism we calculate the doping dependence of the resonance peak seen in inelastic neutron scattering and the magnetic coherence effect. We find that the resonance peak in the magnetic susceptibility, Im χ(q, ω), appears only in the superconducting state at ωres and that it scales with Tc. Magnetic coherence is a result of an interplay between a d-wave order parameter and the kinematic gap ωo. We analyze the structure of Im χ below Tc, the doping dependence of ωo and ωres, and the consequences for the optical conductivity.

KW - Inelastic neutron scattering

KW - Magnetic coherence

KW - Resonance peak

KW - Spin-fluctuation-induced pairing mechanism

UR - http://www.scopus.com/inward/record.url?scp=0034694645&partnerID=8YFLogxK

M3 - Journal article

AN - SCOPUS:0034694645

SN - 0217-9792

VL - 14

SP - 3451

EP - 3456

JO - International Journal of Modern Physics B

JF - International Journal of Modern Physics B

IS - 29-31

ER -

Theory for inelastic neutron scattering in high-T_c superconductors: Doping and temperature dependence of two characteristic frequencies

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