Electrical transport properties of [001] tilt bicrystal grain boundaries in YBa2Cu3O7

The zero-field electrical transport properties of 24° [001] tilt bicrystal grain boundaries in YBa2Cu3O7 were found to be in excellent agreement with the Ambegaokar–Halperin model over an extended range of currents and voltages. This model gives a firm basis for characterizing and comparing boundari...

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Veröffentlicht in:	Applied physics letters 1996-01, Vol.68 (1), p.120-122
Hauptverfasser:	Steel, D. G., Hettinger, J. D., Yuan, F., Miller, D. J., Gray, K. E., Kang, J. H., Talvacchio, J.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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Zusammenfassung:	The zero-field electrical transport properties of 24° [001] tilt bicrystal grain boundaries in YBa2Cu3O7 were found to be in excellent agreement with the Ambegaokar–Halperin model over an extended range of currents and voltages. This model gives a firm basis for characterizing and comparing boundaries, and provides two independent measures of the critical current, which were proportional to (1−T/Tc)2 close to the transition temperature Tc.
ISSN:	0003-6951 1077-3118
DOI:	10.1063/1.116775