Gas-phase nanoparticle formation and transport during pulsed laser deposition of Y1Ba2Cu3O7-d

D. B. Geohegan; A. A. Puretzky; D. J. Rader

doi:10.1063/1.124180

Gas-phase nanoparticle formation and transport during pulsed laser deposition of Y₁Ba₂Cu₃O_7-d

D. B. Geohegan, A. A. Puretzky, D. J. Rader

Functional Hybrid Nanomaterials

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Abstract

Y₁Ba₂Cu₃O_7-δ (YBCO) films were prepared by gas-phase growth and pulsed-laser deposition. The R-t plots of YBCO plume plasma-front propagation into 200 mTorr O₂ were examined at heater temperatures of 22 and 600 °C. Curve fitting used a phenomenological a = -αυ² drag model, where υ = υ₀/(1+αυ₀t); R = α^-1 ln(1+αυ₀t). The integrated Rayleigh scattering (RS) signal from nanoparticles suspended within 3.3 cm of the heater face at 22 °C was analyzed for P_O(2) = 175, 200, 300, and 500 mTorr. The characteristic time τ of the RS-intensity growth and the onset time of observable RS were also analyzed at 22 °C as a function of P_O(2). The onset O₂ pressure for detectable RS is presented for varying heater temperatures.

Original language	English
Pages (from-to)	3788-3790
Number of pages	3
Journal	Applied Physics Letters
Volume	74
Issue number	25
DOIs	https://doi.org/10.1063/1.124180
State	Published - Jun 21 1999

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title = "Gas-phase nanoparticle formation and transport during pulsed laser deposition of Y1Ba2Cu3O7-d",

abstract = "Y1Ba2Cu3O7-δ (YBCO) films were prepared by gas-phase growth and pulsed-laser deposition. The R-t plots of YBCO plume plasma-front propagation into 200 mTorr O2 were examined at heater temperatures of 22 and 600 °C. Curve fitting used a phenomenological a = -αυ2 drag model, where υ = υ0/(1+αυ0t); R = α-1 ln(1+αυ0t). The integrated Rayleigh scattering (RS) signal from nanoparticles suspended within 3.3 cm of the heater face at 22 °C was analyzed for PO(2) = 175, 200, 300, and 500 mTorr. The characteristic time τ of the RS-intensity growth and the onset time of observable RS were also analyzed at 22 °C as a function of PO(2). The onset O2 pressure for detectable RS is presented for varying heater temperatures.",

author = "Geohegan, {D. B.} and Puretzky, {A. A.} and Rader, {D. J.}",

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T1 - Gas-phase nanoparticle formation and transport during pulsed laser deposition of Y1Ba2Cu3O7-d

AU - Geohegan, D. B.

AU - Puretzky, A. A.

AU - Rader, D. J.

PY - 1999/6/21

Y1 - 1999/6/21

N2 - Y1Ba2Cu3O7-δ (YBCO) films were prepared by gas-phase growth and pulsed-laser deposition. The R-t plots of YBCO plume plasma-front propagation into 200 mTorr O2 were examined at heater temperatures of 22 and 600 °C. Curve fitting used a phenomenological a = -αυ2 drag model, where υ = υ0/(1+αυ0t); R = α-1 ln(1+αυ0t). The integrated Rayleigh scattering (RS) signal from nanoparticles suspended within 3.3 cm of the heater face at 22 °C was analyzed for PO(2) = 175, 200, 300, and 500 mTorr. The characteristic time τ of the RS-intensity growth and the onset time of observable RS were also analyzed at 22 °C as a function of PO(2). The onset O2 pressure for detectable RS is presented for varying heater temperatures.

AB - Y1Ba2Cu3O7-δ (YBCO) films were prepared by gas-phase growth and pulsed-laser deposition. The R-t plots of YBCO plume plasma-front propagation into 200 mTorr O2 were examined at heater temperatures of 22 and 600 °C. Curve fitting used a phenomenological a = -αυ2 drag model, where υ = υ0/(1+αυ0t); R = α-1 ln(1+αυ0t). The integrated Rayleigh scattering (RS) signal from nanoparticles suspended within 3.3 cm of the heater face at 22 °C was analyzed for PO(2) = 175, 200, 300, and 500 mTorr. The characteristic time τ of the RS-intensity growth and the onset time of observable RS were also analyzed at 22 °C as a function of PO(2). The onset O2 pressure for detectable RS is presented for varying heater temperatures.

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Gas-phase nanoparticle formation and transport during pulsed laser deposition of Y₁Ba₂Cu₃O_7-d

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