AC susceptibility of the Hg0.3La0.7Ba2Ca3(Cu0.95Ag0.5)4O10+δ superconductor
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- 作者：M.F. Mostafaa ; A Hassenb ; ash02@fayoum.edu.eg" class="auth_mail" title="E-mail the corresponding author
- 关键词：Ag-doped high-Tc superconductor ; AC susceptibility ; Irreversibility line ; Matsushita's formula ; Effective pinning energy
- 刊名：Physica C: Superconductivity
- 出版年：2016
- 出版时间：15 September 2016
- 年：2016
- 卷：528
- 期：Complete
- 页码：12-16
- 全文大小：1747 K
文摘
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The superconductivity survives in Hg0.3La0.7Ba2Ca3(Cu1−xAgx)4O10+δ, even at x = 0.50.
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The irreversibility line (IL) exhibits thermal activated behaviour.
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The flux pinning of Hg0.3La0.7Ba2Ca3(Cu0.95Ag0.5)4O10+δ is discussed and compared with that of low Ag content (0.10 ≤ x ≤ 0.30).
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A crossover from a two- to a three-dimensional system is suggested at T/Tc = 0.75 and a magnetic field, Hdc = 0.04 T. Mitsuhita's formula is verified for the investigated compound.
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Based on vortex glass phase transition theory, the effective pinning energy, ueff, was calculated.