Sharp angular sensitivity of pinning due to twin boundaries in Ba 2YCu3O7

E. M. Gyorgy; R. B. Van Dover; L. F. Schneemeyer; A. E. White; H. M. O'Bryan; R. J. Felder; J. V. Waszczak; W. W. Rhodes; F. Hellman

doi:10.1063/1.103257

Sharp angular sensitivity of pinning due to twin boundaries in Ba ₂YCu₃O₇

E. M. Gyorgy, R. B. Van Dover, L. F. Schneemeyer, A. E. White, H. M. O'Bryan, R. J. Felder, J. V. Waszczak, W. W. Rhodes, F. Hellman

Chemistry and Biochemistry

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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.

Original language	English
Pages (from-to)	2465-2467
Number of pages	3
Journal	Applied Physics Letters
Volume	56
Issue number	24
DOIs	https://doi.org/10.1063/1.103257
State	Published - 1990

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title = "Sharp angular sensitivity of pinning due to twin boundaries in Ba 2YCu3O7",

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.",

author = "Gyorgy, {E. M.} and {Van Dover}, {R. B.} and Schneemeyer, {L. F.} and White, {A. E.} and O'Bryan, {H. M.} and Felder, {R. J.} and Waszczak, {J. V.} and Rhodes, {W. W.} and F. Hellman",

year = "1990",

doi = "10.1063/1.103257",

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pages = "2465--2467",

journal = "Applied Physics Letters",

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T1 - Sharp angular sensitivity of pinning due to twin boundaries in Ba 2YCu3O7

AU - Gyorgy, E. M.

AU - Van Dover, R. B.

AU - Schneemeyer, L. F.

AU - White, A. E.

AU - O'Bryan, H. M.

AU - Felder, R. J.

AU - Waszczak, J. V.

AU - Rhodes, W. W.

AU - Hellman, F.

PY - 1990

Y1 - 1990

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0001754735&partnerID=8YFLogxK

U2 - 10.1063/1.103257

DO - 10.1063/1.103257

M3 - Article

AN - SCOPUS:0001754735

SN - 0003-6951

VL - 56

SP - 2465

EP - 2467

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

ER -

Sharp angular sensitivity of pinning due to twin boundaries in Ba ₂YCu₃O₇

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