Reflectivity of Ba2YCu3O7-σ

Normal state dynamics

J. Orenstein, G. A. Thomas, D. H. Rapkine, A. J. Millis, Lynn Schneemeyer, J. V. Waszczak

Research output: Contribution to journalArticleResearchpeer-review

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Abstract

Measurements of reflectivity, R, as a function of temperature, T, and frequency, ω, in crystals of Ba2YCu3O7-δ, with σ ≅ 0.1, 0.3, and 0.8, are reported. The frequency dependent conductivity, σ(ω, T), obtained by analysis of R extrapolates at low ω to values consistent with previously reported σ(O,T). To explain the shape of σ(ω, T) requires the quasiparticle mass and lifetime to be strongly ω-dependent, withh¯/τ ≈ 2kBT and m*/mo ≈ 7 at low ω, crossingg over toh¯/τ ≈ 0.35 eV and m*/mo ≈ 1 forh¯/τ 〉 0.3 eV.

Original languageEnglish
Pages (from-to)1740-1743
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume153-155
DOIs
StatePublished - 1 Jan 1988

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reflectance
Crystals
life (durability)
conductivity
Temperature
crystals
temperature

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Orenstein, J., Thomas, G. A., Rapkine, D. H., Millis, A. J., Schneemeyer, L., & Waszczak, J. V. (1988). Reflectivity of Ba2YCu3O7-σ: Normal state dynamics. Physica C: Superconductivity and its Applications, 153-155, 1740-1743. https://doi.org/10.1016/0921-4534(88)90464-9
Orenstein, J. ; Thomas, G. A. ; Rapkine, D. H. ; Millis, A. J. ; Schneemeyer, Lynn ; Waszczak, J. V. / Reflectivity of Ba2YCu3O7-σ : Normal state dynamics. In: Physica C: Superconductivity and its Applications. 1988 ; Vol. 153-155. pp. 1740-1743.
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abstract = "Measurements of reflectivity, R, as a function of temperature, T, and frequency, ω, in crystals of Ba2YCu3O7-δ, with σ ≅ 0.1, 0.3, and 0.8, are reported. The frequency dependent conductivity, σ(ω, T), obtained by analysis of R extrapolates at low ω to values consistent with previously reported σ(O,T). To explain the shape of σ(ω, T) requires the quasiparticle mass and lifetime to be strongly ω-dependent, withh¯/τ ≈ 2kBT and m*/mo ≈ 7 at low ω, crossingg over toh¯/τ ≈ 0.35 eV and m*/mo ≈ 1 forh¯/τ 〉 0.3 eV.",
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Reflectivity of Ba2YCu3O7-σ : Normal state dynamics. / Orenstein, J.; Thomas, G. A.; Rapkine, D. H.; Millis, A. J.; Schneemeyer, Lynn; Waszczak, J. V.

In: Physica C: Superconductivity and its Applications, Vol. 153-155, 01.01.1988, p. 1740-1743.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Reflectivity of Ba2YCu3O7-σ

T2 - Normal state dynamics

AU - Orenstein, J.

AU - Thomas, G. A.

AU - Rapkine, D. H.

AU - Millis, A. J.

AU - Schneemeyer, Lynn

AU - Waszczak, J. V.

PY - 1988/1/1

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AB - Measurements of reflectivity, R, as a function of temperature, T, and frequency, ω, in crystals of Ba2YCu3O7-δ, with σ ≅ 0.1, 0.3, and 0.8, are reported. The frequency dependent conductivity, σ(ω, T), obtained by analysis of R extrapolates at low ω to values consistent with previously reported σ(O,T). To explain the shape of σ(ω, T) requires the quasiparticle mass and lifetime to be strongly ω-dependent, withh¯/τ ≈ 2kBT and m*/mo ≈ 7 at low ω, crossingg over toh¯/τ ≈ 0.35 eV and m*/mo ≈ 1 forh¯/τ 〉 0.3 eV.

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JO - Physica C: Superconductivity and its Applications

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