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Displaying 61726 - 61750 of 74330

Growth and properties of YBa2Cu3O7 thin films on vicinal and polycrystalline MgO substrates

December 21, 1990
Author(s)
Stephen E. Russek, Brian H. Moeckly, D. K. Lathrop, R A. Buhrman, M. G. Norton, C, B. Carter
We discuss the results of a study on the growth by laser ablation of YBa2Cu3O7 thin films on polycrystalline and annealed vicinal (001) MgO substrates. In both instances the filss were found to grow predominantly with the c axis normal the the plane of the

Critical exponent for viscosity

December 15, 1990
Author(s)
Robert Berg, Michael Moldover
We have measured the critical exponent y characterizing the divergence of the viscosity eta  |T - Tc|^-y for carbon dioxide and xenon. The values of y for both fluids fall within the range y = 0.041 ± 0.001 and are consistent with the range y = 0.042 ± 0

Transport properties of high-angle grain boundary weak links in YBa2Cu307 thin films

December 3, 1990
Author(s)
Stephen E. Russek, D. K. Lathrop, Brian H. Moeckly, R A. Buhrman
By patterning ~ l-um-wide microbridges in laser ablated YBa2Cu3O7, films containing high-angle tilt boundaries, weak links have been isolated with critical currents low enough to avoid self-screening effects. The current-voltage characteristics of these
Displaying 61726 - 61750 of 74330
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