Development of the optical conductivity with doping in single-domain YBa2Cu3O6+x

S. L. Cooper; A. L. Kotz; M. A. Karlow; M. V. Klein; W. C. Lee; J. Giapintzakis; D. M. Ginsberg

doi:10.1103/PhysRevB.45.2549

Development of the optical conductivity with doping in single-domain YBa2Cu3O6+x

S. L. Cooper, A. L. Kotz, M. A. Karlow, M. V. Klein, W. C. Lee, J. Giapintzakis, D. M. Ginsberg

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Abstract

Optical studies of single-domain crystals of YBa2Cu3O6+x allow us to separate the CuO2-plane and CuO-chain contributions to the optical conductivity as a function of doping between 0.025 and 5.5 eV. We find several interesting consequences of doping on the optical conductivity of YBa2Cu3O6+x: the 4.1-eV transition in tetragonal YBa2Cu3O6.1 is split into a- and b-axis-polarized components by CuO-chain formation; oscillator strength associated with the charge-transfer band of insulating YBa2Cu3O6.1 is redistributed to low frequencies; and the low-frequency conductivity in the CuO2 planes evolves into a non-Drude response comprised of a single resolvable component. The CuO-chain conductivity, by contrast, is dominated by a midinfrared absorption band.

Original language	English (US)
Pages (from-to)	2549-2552
Number of pages	4
Journal	Physical Review B
Volume	45
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.45.2549
State	Published - 1992

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Condensed Matter Physics

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abstract = "Optical studies of single-domain crystals of YBa2Cu3O6+x allow us to separate the CuO2-plane and CuO-chain contributions to the optical conductivity as a function of doping between 0.025 and 5.5 eV. We find several interesting consequences of doping on the optical conductivity of YBa2Cu3O6+x: the 4.1-eV transition in tetragonal YBa2Cu3O6.1 is split into a- and b-axis-polarized components by CuO-chain formation; oscillator strength associated with the charge-transfer band of insulating YBa2Cu3O6.1 is redistributed to low frequencies; and the low-frequency conductivity in the CuO2 planes evolves into a non-Drude response comprised of a single resolvable component. The CuO-chain conductivity, by contrast, is dominated by a midinfrared absorption band.",

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AU - Cooper, S. L.

AU - Kotz, A. L.

AU - Karlow, M. A.

AU - Klein, M. V.

AU - Lee, W. C.

AU - Giapintzakis, J.

AU - Ginsberg, D. M.

PY - 1992

Y1 - 1992

N2 - Optical studies of single-domain crystals of YBa2Cu3O6+x allow us to separate the CuO2-plane and CuO-chain contributions to the optical conductivity as a function of doping between 0.025 and 5.5 eV. We find several interesting consequences of doping on the optical conductivity of YBa2Cu3O6+x: the 4.1-eV transition in tetragonal YBa2Cu3O6.1 is split into a- and b-axis-polarized components by CuO-chain formation; oscillator strength associated with the charge-transfer band of insulating YBa2Cu3O6.1 is redistributed to low frequencies; and the low-frequency conductivity in the CuO2 planes evolves into a non-Drude response comprised of a single resolvable component. The CuO-chain conductivity, by contrast, is dominated by a midinfrared absorption band.

AB - Optical studies of single-domain crystals of YBa2Cu3O6+x allow us to separate the CuO2-plane and CuO-chain contributions to the optical conductivity as a function of doping between 0.025 and 5.5 eV. We find several interesting consequences of doping on the optical conductivity of YBa2Cu3O6+x: the 4.1-eV transition in tetragonal YBa2Cu3O6.1 is split into a- and b-axis-polarized components by CuO-chain formation; oscillator strength associated with the charge-transfer band of insulating YBa2Cu3O6.1 is redistributed to low frequencies; and the low-frequency conductivity in the CuO2 planes evolves into a non-Drude response comprised of a single resolvable component. The CuO-chain conductivity, by contrast, is dominated by a midinfrared absorption band.

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Development of the optical conductivity with doping in single-domain YBa2Cu3O6+x

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