AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors
We have studied the frequency dependence of the AC susceptibility in polycrystalline samples of Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ. AC susceptibility measurements in the range 20–1000 Hz show that as the frequency increases, the intra and intergranular AC loss peaks move to higher temperature, and also t...
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| Format: | Article |
| Language: | English |
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Elsevier BV
2002
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| Online Access: | http://psasir.upm.edu.my/id/eprint/111874/ http://psasir.upm.edu.my/id/eprint/111874/3/111874.pdf |
| _version_ | 1848865802394009600 |
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| author | Malik, A.I. Çelebi, S. Halim, S.A. |
| author_facet | Malik, A.I. Çelebi, S. Halim, S.A. |
| author_sort | Malik, A.I. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | We have studied the frequency dependence of the AC susceptibility in polycrystalline samples of Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ. AC susceptibility measurements in the range 20–1000 Hz show that as the frequency increases, the intra and intergranular AC loss peaks move to higher temperature, and also the height and the width of the peaks increase. When we plot the peak height as a function of the AC field amplitudes, we observe a valley-like behavior. We qualitatively discuss experimental results in the framework of the critical state model, estimate the effective volume fraction of the grains and determine the temperature dependence of the intergranular critical current density by means of the best fit of the calculated data for the experimental matrix susceptibility. Since the granularity effect was very pronounced at low field range, we separated the contribution of the grains and matrix from the total measured AC susceptibility. |
| first_indexed | 2025-11-15T14:10:30Z |
| format | Article |
| id | upm-111874 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:10:30Z |
| publishDate | 2002 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1118742025-03-12T01:41:24Z http://psasir.upm.edu.my/id/eprint/111874/ AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors Malik, A.I. Çelebi, S. Halim, S.A. We have studied the frequency dependence of the AC susceptibility in polycrystalline samples of Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ. AC susceptibility measurements in the range 20–1000 Hz show that as the frequency increases, the intra and intergranular AC loss peaks move to higher temperature, and also the height and the width of the peaks increase. When we plot the peak height as a function of the AC field amplitudes, we observe a valley-like behavior. We qualitatively discuss experimental results in the framework of the critical state model, estimate the effective volume fraction of the grains and determine the temperature dependence of the intergranular critical current density by means of the best fit of the calculated data for the experimental matrix susceptibility. Since the granularity effect was very pronounced at low field range, we separated the contribution of the grains and matrix from the total measured AC susceptibility. Elsevier BV 2002 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/111874/3/111874.pdf Malik, A.I. and Çelebi, S. and Halim, S.A. (2002) AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors. Physica C: Superconductivity, 377 (4). pp. 421-430. ISSN 0921-4534 https://linkinghub.elsevier.com/retrieve/pii/S0921453402014582 10.1016/s0921-4534(02)01458-2 |
| spellingShingle | Malik, A.I. Çelebi, S. Halim, S.A. AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title | AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title_full | AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title_fullStr | AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title_full_unstemmed | AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title_short | AC susceptibility study in Bi1.6Pb0.4Sr2(Ca1−xNdx)2Cu3Oδ ceramic superconductors |
| title_sort | ac susceptibility study in bi1.6pb0.4sr2(ca1−xndx)2cu3oδ ceramic superconductors |
| url | http://psasir.upm.edu.my/id/eprint/111874/ http://psasir.upm.edu.my/id/eprint/111874/ http://psasir.upm.edu.my/id/eprint/111874/ http://psasir.upm.edu.my/id/eprint/111874/3/111874.pdf |