Increased pinning energies and critical current densities in heavy-ion-irradiated Bi2Sr2CaCu2O8 single crystals

J. A. Cutro; D. A. Rudman; T. P. Orlando; R. B. Van Dover; L. F. Schneemeyer; A. E. White; E. M. Gyorgy; J. V. Waszczak; R. J. Felder

doi:10.1063/1.108570

Increased pinning energies and critical current densities in heavy-ion-irradiated Bi₂Sr₂CaCu₂O₈ single crystals

J. A. Cutro, D. A. Rudman, T. P. Orlando, R. B. Van Dover, L. F. Schneemeyer, A. E. White, E. M. Gyorgy, J. V. Waszczak, R. J. Felder

Chemistry and Biochemistry

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5 Scopus citations

Abstract

We report a significant increase in the pinning energy of vortices in single-crystal Bi₂Sr₂CaCu₂O₈ when irradiated with heavy ions such as Ar⁺. This is in contrast with the results of light ion (H⁺, He⁺) irradiations which give pinning energies comparable with those of unirradiated crystals. The stronger pinning is attributed to defects larger than point defects, e.g., clusters or amorphized regions. As a result of higher pinning energies, critical currents persist at markedly higher temperatures and fields.

Original language	English
Pages (from-to)	759-761
Number of pages	3
Journal	Applied Physics Letters
Volume	62
Issue number	7
DOIs	https://doi.org/10.1063/1.108570
State	Published - 1 Dec 1993

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title = "Increased pinning energies and critical current densities in heavy-ion-irradiated Bi2Sr2CaCu2O8 single crystals",

abstract = "We report a significant increase in the pinning energy of vortices in single-crystal Bi2Sr2CaCu2O8 when irradiated with heavy ions such as Ar+. This is in contrast with the results of light ion (H+, He+) irradiations which give pinning energies comparable with those of unirradiated crystals. The stronger pinning is attributed to defects larger than point defects, e.g., clusters or amorphized regions. As a result of higher pinning energies, critical currents persist at markedly higher temperatures and fields.",

author = "Cutro, {J. A.} and Rudman, {D. A.} and Orlando, {T. P.} and {Van Dover}, {R. B.} and Schneemeyer, {L. F.} and White, {A. E.} and Gyorgy, {E. M.} and Waszczak, {J. V.} and Felder, {R. J.}",

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Increased pinning energies and critical current densities in heavy-ion-irradiated Bi₂Sr₂CaCu₂O₈ single crystals. / Cutro, J. A.; Rudman, D. A.; Orlando, T. P.; Van Dover, R. B.; Schneemeyer, L. F.; White, A. E.; Gyorgy, E. M.; Waszczak, J. V.; Felder, R. J.

In: Applied Physics Letters, Vol. 62, No. 7, 01.12.1993, p. 759-761.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Increased pinning energies and critical current densities in heavy-ion-irradiated Bi2Sr2CaCu2O8 single crystals

AU - Cutro, J. A.

AU - Rudman, D. A.

AU - Orlando, T. P.

AU - Van Dover, R. B.

AU - Schneemeyer, L. F.

AU - White, A. E.

AU - Gyorgy, E. M.

AU - Waszczak, J. V.

AU - Felder, R. J.

PY - 1993/12/1

Y1 - 1993/12/1

N2 - We report a significant increase in the pinning energy of vortices in single-crystal Bi2Sr2CaCu2O8 when irradiated with heavy ions such as Ar+. This is in contrast with the results of light ion (H+, He+) irradiations which give pinning energies comparable with those of unirradiated crystals. The stronger pinning is attributed to defects larger than point defects, e.g., clusters or amorphized regions. As a result of higher pinning energies, critical currents persist at markedly higher temperatures and fields.

AB - We report a significant increase in the pinning energy of vortices in single-crystal Bi2Sr2CaCu2O8 when irradiated with heavy ions such as Ar+. This is in contrast with the results of light ion (H+, He+) irradiations which give pinning energies comparable with those of unirradiated crystals. The stronger pinning is attributed to defects larger than point defects, e.g., clusters or amorphized regions. As a result of higher pinning energies, critical currents persist at markedly higher temperatures and fields.

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