Sharp Angular Sensitivity of Pinning Due to Twin Boundaries in Ba 2ycu3o7

Authors

E.Michael Gyorgy, LucentFollow
Robert B. Van Dover, Cornell UniversityFollow
Lynn Schneemeyer, Montclair State UniversityFollow
Alice E. White, Boston UniversityFollow
H. M. O'Bryan, Lucent
R. J. Felder, LucentFollow
Joseph V. Waszczak, University of WashingtonFollow
Warren W. Rhodes, Lucent
F. Hellman, University of California at San Diego

Document Type

Article

Publication Date

12-1-1990

Abstract

We have measured the pinning force due to twin boundaries by measuring the magnetic torque produced when a field is applied perpendicular to the c axis and rotated with respect to the ab axes. At 76 K, the torque increases roughly fourfold, when the field is within 2°of the parallel to the twin boundaries. This peak is absent at 27 K. Irradiation with 5×101 6 cm-2 3.5 MeV protons increases the overall critical current and eliminates the peaks observed at 76 K.

DOI

10.1063/1.103257

Montclair State University Digital Commons Citation

Gyorgy, E.Michael; Van Dover, Robert B.; Schneemeyer, Lynn; White, Alice E.; O'Bryan, H. M.; Felder, R. J.; Waszczak, Joseph V.; Rhodes, Warren W.; and Hellman, F., "Sharp Angular Sensitivity of Pinning Due to Twin Boundaries in Ba 2ycu3o7" (1990). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 459.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/459