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Growth of highly doped p-type ZnTe films by pulsed laser ablation in molecular nitrogen

Description: Highly p-doped ZnTe films have been grown on semi-insulating GaAs (001) substrates by pulsed-laser ablation (PLA) of a stoichiometric ZnTe target in a high-purity N{sub 2} ambient without the use of any assisting (DC or AC) plasma source. Free hole concentrations in the mid-10{sup 19} cm{sup {minus}3} to > 10{sup 20} cm{sup {minus}3} range were obtained for a range of nitrogen pressures The maximum hole concentration equals the highest hole doping reported to date for any wide band gap II-VI co… more
Date: April 1, 1995
Creator: Lowndes, D. H.; Rouleau, C. M.; Budai, J. D.; Poker, D. B.; Geohegan, D. B.; Zhu, Shen et al.
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Partner: UNT Libraries Government Documents Department
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Superconducting properties and microstructure of YBa sub 2 Cu sub 3 O sub 7-. delta. /PrBa sub 2 Cu sub 3 O sub 7-. delta. superlattices

Description: Epitaxial YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}/PrBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO/PBCO) superlattices are tools for systematic, fundamental studies of high-temperature superconductivity. The variation of {Tc} in YBCO/PBCO superlattices can be understood as arising from changes in the interlayer phase coupling between YBCO layers that are highly two-dimensional when they are very thin ({approximately}1--2 c-axis unit cells) and completely isolated from each other. Single-cell-thick YBCO l… more
Date: October 1, 1991
Creator: Lowndes, D.H.; Norton, D.P.; Zheng, X.Y. (Oak Ridge National Lab., TN (United States)) & Zhu, Shen (Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy)
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Partner: UNT Libraries Government Documents Department
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Laser ablation synthesis and properties of epitaxial YBa sub 2 Cu sub 3 O sub 7-. delta. /PrBa sub 2 Cu sub 3 O sub 7-. delta. superconducting superlattices

Description: Pulsed laser ablation has been used to fabricate epitaxial superlattices in which c-axis-perpendicular YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (YBCO) layers as thin as a single unit cell are separated by semiconducting PrBa{sub 2}Cu{sub 3}O{sub 7-{delta}} (PBCO) layers. The superlattice {Tc} (R=0) decreases rapidly with increasing PBCO thickness, but then saturates at {Tc}{approximately}19 K, 54 K, 71 K, or 80 K, for structures containing isolated, 1-,2-,3-, or 4-cell-thick YBCO layers, respectivel… more
Date: September 1, 1991
Creator: Lowndes, D. H.; Norton, D. P.; Zheng, X. Y. (Oak Ridge National Lab., TN (United States)) & Zhu, Shen (Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy)
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Partner: UNT Libraries Government Documents Department
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Properties of epitaxial YBa sub 2 Cu sub 3 O sub 7-. delta. -based superconducting superlattices

Description: Epitaxial YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} superconducting superlattices have been fabricated using pulsed laser deposition in which c-axis oriented YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} layers as thin as one unit cell thick are separated by relatively thick PrBa{sub 2}Cu{sub 3}O{sub 7-{delta}} based barrier layers. The superlattice {Tc} (R=0) decreases rapidly with increasing barrier layer thickness, but then saturates at a finite {Tc} for YBa{sub 2}Cu{sub 3}O{sub 7-{delta}} layers as thin as… more
Date: September 1, 1991
Creator: Norton, D.P.; Lowndes, D.H.; Zheng, Z. Y.; Feenstra, R. (Oak Ridge National Lab., TN (United States)) & Zhu, Shen (Tennessee Univ., Knoxville, TN (United States). Dept. of Physics and Astronomy)
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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