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Flux pinning by heavy-ion-irradiation induced linear defects in YBa{sub 2}Cu{sub 3}O{sub 7} epitaxial films

Description: We report some transport measurements carried out to study flux pinning by heavy-ion-irradiation induced linear defects in Y{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7} films. Our results show that in these in situ deposited films containing a large concentration of defects frozen-in at the time of film growth, a marginal enhancement in critical current density occurs when the density of linear defects < 5 {times} 10{sup 10}/cm{sup 2}, and their diameter of the order of coherence length. This criterion is… more
Date: December 31, 1992
Creator: Budhani, R. C.; Zhu, Y. & Suenaga, M.
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Partner: UNT Libraries Government Documents Department
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Enhancements of the Critical Currents of YBaCuO Single Crystals by Neutron (n) and Proton (p) Irradiation

Description: We present results of magnetization hysteresis and {Tc} measurements of neutron and proton irradiated YBaCuO single crystals. The crystals used for comparison were irradiated to a fluence of 2{times}10{sup 7}n/cm{sup 2} (n,E {gt} 0.1MeV) and 1{times}10{sup 16}p/cm{sup 2} (p,E=3.5MeV). The critical currents at 1T and 10K are enhanced by a factor of 5 for the neutron irradiated and a factor of 9 for the proton irradiated sample respectively. After irradiation the crystals were annealed at 100, 20… more
Date: December 31, 1992
Creator: Vlcek, B. M.; Frischherz, M. C.; Vishwanathan, H. K.; Welp, U.; Crabtree, G. W. & Kirk, M. A.
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Partner: UNT Libraries Government Documents Department
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A theoretical analysis of the effect of uniaxial elastic strain on the critical temperature of cuprate superconductors

Description: Factors which influence the effect of uniaxial stress and strain on the superconducting critical temperature are discussed, with emphasis on the effect of uniaxial strain on the mobile hole density of YBa{sub 2}Ci{sub 3}O{sub 7}.
Date: December 31, 1992
Creator: Welch, D. O. & Baetzold, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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