TY - JOUR KW - Crystal doping KW - Superconducting films KW - Laser radiation KW - Bismuth oxides KW - Calcium oxides KW - Copper oxides KW - Experimental data KW - Fabrication KW - Grain growth KW - High−tc superconductors KW - Lead oxides KW - Magnesium oxides KW - Stabilization KW - Strontium oxides KW - Synthesis KW - Transition temperature KW - Vacuum coating KW - Vapor deposited coatings KW - Very high temperature KW - Very low temperature AU - Xianglei Mao AU - Richard E Russo AU - H B Liu AU - James C Ho AB -

Superconducting Bi‐Pb‐Sr‐Ca‐Cu‐O films doped with Sb have been fabricated on MgO single‐crystal substrates without post‐annealing, using pulsed excimer laser deposition. Deposition at 800 °C in 0.2 Torr oxygen environment from a target doped with Sb yielded as‐deposited superconducting films with zero resistance at 70 K. X‐ray diffraction data show the films are c‐axis oriented 2212 phase material. Scanning electron micrographs indicate that doping with Sb enhances grain growth. These results demonstrate that Sb acts to stabilize the 2212 phase in the as‐deposited films.

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WICHITA STATE UNIV,DEPT PHYS,WICHITA,KS 67208 WICHITA STATE UNIV,DEPT CHEM,WICHITA,KS 67208 WICHITA STATE UNIV,NATL INST AVIAT RES,WICHITA,KS 67208

BT - Applied Physics Letters C2 - LBNL-29723 DO - 10.1063/1.103824 IS - 24 LA - eng LB - Laser N1 -

LBNL-29723 NOT IN FILE

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Superconducting Bi‐Pb‐Sr‐Ca‐Cu‐O films doped with Sb have been fabricated on MgO single‐crystal substrates without post‐annealing, using pulsed excimer laser deposition. Deposition at 800 °C in 0.2 Torr oxygen environment from a target doped with Sb yielded as‐deposited superconducting films with zero resistance at 70 K. X‐ray diffraction data show the films are c‐axis oriented 2212 phase material. Scanning electron micrographs indicate that doping with Sb enhances grain growth. These results demonstrate that Sb acts to stabilize the 2212 phase in the as‐deposited films.

PY - 1990 SP - 2591 EP - 2593 ST - Appl. Phys. Lett. T2 - Applied Physics Letters TI - As-Deposited Sb-Doped Bi-Pb-Sr-Ca-Cu-O Thin-Films Prepared by Pulsed Laser Deposition VL - 57 ER -