Irreversibility line in YBa2Cu3O7 samples. A comparison between experimental techniques and effect of electron irradiation

E. R. Yacoby; A. Shaulov; Y. Yeshurun; M. Konczykowski; F. Rullier-Albenque

doi:10.1016/0921-4534(92)90534-J

Irreversibility line in YBa₂Cu₃O₇ samples. A comparison between experimental techniques and effect of electron irradiation

E. R. Yacoby, A. Shaulov, Y. Yeshurun, M. Konczykowski, F. Rullier-Albenque

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15 Scopus citations

Abstract

We have investigated the irreversibility line (IRL) of a ceramic YBa₂Cu₃O₇ sample by probing the onset of irreversibility in four DC and AC techniques. All techniques yield a line which obeys a power law H=A( 1-T T_c)ⁿ but A and n depend on the technique. Also, the location of the peak in the AC signal obeys this power-law but it does not scale with the onset of irreversibility. We have also investigated the effect of two doses of 2.5 MeV electron irradiation on the IRL and find that after irradiation both the transition temperature T_c and the irreversibility temperature T_irr decrease. The decrease in T_irr scales with the decrease in T_c. We propose that this scaling indicates that electron-irradiation does not induce pinning centers stronger than those present in the unirradiated sample.

Original language	English
Pages (from-to)	15-22
Number of pages	8
Journal	Physica C: Superconductivity and its Applications
Volume	199
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(92)90534-J
State	Published - 15 Aug 1992

Bibliographical note

Funding Information:
It is a pleasure to thank H. Pascard for providing the ceramic samples. The authors thank L. Klein for suggestions and helpful discussions. The work in Israel is partially supported by the Fund for Research and Development administered by the Ministry of Science and Technology.

Funding

It is a pleasure to thank H. Pascard for providing the ceramic samples. The authors thank L. Klein for suggestions and helpful discussions. The work in Israel is partially supported by the Fund for Research and Development administered by the Ministry of Science and Technology.

Funders	Funder number
Fund for Research and Development
Ministry of Science and Technology, Taiwan

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10.1016/0921-4534(92)90534-J

Cite this

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title = "Irreversibility line in YBa2Cu3O7 samples. A comparison between experimental techniques and effect of electron irradiation",

abstract = "We have investigated the irreversibility line (IRL) of a ceramic YBa2Cu3O7 sample by probing the onset of irreversibility in four DC and AC techniques. All techniques yield a line which obeys a power law H=A( 1-T Tc)n but A and n depend on the technique. Also, the location of the peak in the AC signal obeys this power-law but it does not scale with the onset of irreversibility. We have also investigated the effect of two doses of 2.5 MeV electron irradiation on the IRL and find that after irradiation both the transition temperature Tc and the irreversibility temperature Tirr decrease. The decrease in Tirr scales with the decrease in Tc. We propose that this scaling indicates that electron-irradiation does not induce pinning centers stronger than those present in the unirradiated sample.",

author = "Yacoby, {E. R.} and A. Shaulov and Y. Yeshurun and M. Konczykowski and F. Rullier-Albenque",

note = "Funding Information: It is a pleasure to thank H. Pascard for providing the ceramic samples. The authors thank L. Klein for suggestions and helpful discussions. The work in Israel is partially supported by the Fund for Research and Development administered by the Ministry of Science and Technology.",

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AU - Yacoby, E. R.

AU - Shaulov, A.

AU - Yeshurun, Y.

AU - Konczykowski, M.

AU - Rullier-Albenque, F.

N1 - Funding Information: It is a pleasure to thank H. Pascard for providing the ceramic samples. The authors thank L. Klein for suggestions and helpful discussions. The work in Israel is partially supported by the Fund for Research and Development administered by the Ministry of Science and Technology.

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N2 - We have investigated the irreversibility line (IRL) of a ceramic YBa2Cu3O7 sample by probing the onset of irreversibility in four DC and AC techniques. All techniques yield a line which obeys a power law H=A( 1-T Tc)n but A and n depend on the technique. Also, the location of the peak in the AC signal obeys this power-law but it does not scale with the onset of irreversibility. We have also investigated the effect of two doses of 2.5 MeV electron irradiation on the IRL and find that after irradiation both the transition temperature Tc and the irreversibility temperature Tirr decrease. The decrease in Tirr scales with the decrease in Tc. We propose that this scaling indicates that electron-irradiation does not induce pinning centers stronger than those present in the unirradiated sample.

AB - We have investigated the irreversibility line (IRL) of a ceramic YBa2Cu3O7 sample by probing the onset of irreversibility in four DC and AC techniques. All techniques yield a line which obeys a power law H=A( 1-T Tc)n but A and n depend on the technique. Also, the location of the peak in the AC signal obeys this power-law but it does not scale with the onset of irreversibility. We have also investigated the effect of two doses of 2.5 MeV electron irradiation on the IRL and find that after irradiation both the transition temperature Tc and the irreversibility temperature Tirr decrease. The decrease in Tirr scales with the decrease in Tc. We propose that this scaling indicates that electron-irradiation does not induce pinning centers stronger than those present in the unirradiated sample.

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