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Electron microscopy and microanalysis of a YBa2Cu 3Ox superconducting oxide

Journal Article


Abstract


  • The onset of superconductivity at 140 K has been observed in the high Tc Y-Ba-Cu-O system in samples consisting of 90% by volume of a single-phase oxide of average cation ratio Y:Ba:Cu���1:2:3. A sharp superconducting transition in the resistivity has been measured, where T c0=140 K, Tc=93.2 K, ��Tc=0.5 K, and "zero resistance" was observed at 92.0 K. Transmission electron microscopy and energy dispersive spectroscopy measurements revealed that the superconducting phase consisted of a large number of microcrystallites of ���0.5 ��m size and that these contained a very high defect microtwinned/faulted structure.

Publication Date


  • 1987

Citation


  • Dou, S. X., Bourdillon, A. J., Sorrell, C. C., Ringer, S. P., Easterling, K. E., Savvides, N., . . . Roberts, R. B. (1987). Electron microscopy and microanalysis of a YBa2Cu 3Ox superconducting oxide. Applied Physics Letters, 51(7), 535-537. doi:10.1063/1.98390

Scopus Eid


  • 2-s2.0-0005588546

Start Page


  • 535

End Page


  • 537

Volume


  • 51

Issue


  • 7

Place Of Publication


Abstract


  • The onset of superconductivity at 140 K has been observed in the high Tc Y-Ba-Cu-O system in samples consisting of 90% by volume of a single-phase oxide of average cation ratio Y:Ba:Cu���1:2:3. A sharp superconducting transition in the resistivity has been measured, where T c0=140 K, Tc=93.2 K, ��Tc=0.5 K, and "zero resistance" was observed at 92.0 K. Transmission electron microscopy and energy dispersive spectroscopy measurements revealed that the superconducting phase consisted of a large number of microcrystallites of ���0.5 ��m size and that these contained a very high defect microtwinned/faulted structure.

Publication Date


  • 1987

Citation


  • Dou, S. X., Bourdillon, A. J., Sorrell, C. C., Ringer, S. P., Easterling, K. E., Savvides, N., . . . Roberts, R. B. (1987). Electron microscopy and microanalysis of a YBa2Cu 3Ox superconducting oxide. Applied Physics Letters, 51(7), 535-537. doi:10.1063/1.98390

Scopus Eid


  • 2-s2.0-0005588546

Start Page


  • 535

End Page


  • 537

Volume


  • 51

Issue


  • 7

Place Of Publication