Magnetization jumps in a lead-porous glass composite: Experiment and simulation

被引：11

作者：

Tien, C. ^{[1
,2
]}

Pirozerskii, A. L. ^{[3
]}

Charnaya, E. V. ^{[1
,3
]}

Xing, D. Y. ^{[4
,5
]}

Ciou, Y. S. ^{[1
]}

Lee, M. K. ^{[1
]}

Kumzerov, Yu. A. ^{[6
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[2] Natl Cheng Kung Univ, Ctr Micro Nano Sci & Technol, Tainan 701, Taiwan

[3] St Petersburg State Univ, Inst Phys, St Petersburg 198504, Russia

[4] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China

[5] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[6] RAS, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 05期

关键词：

FLUX JUMPS; II SUPERCONDUCTORS; CRITICAL STATE; SWEEP RATE; TEMPERATURE; INSTABILITIES; AVALANCHES; TRANSITIONS; STABILITY; GALLIUM;

D O I：

10.1063/1.3554663

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental and numerical studies of magnetization in a Pb-porous glass nanocomposite superconductor are reported. ZFC and FC magnetization revealed behavior typical for type-II superconductors with the critical temperature close to that in bulk lead. Magnetic instabilities were observed on the magnetization versus field hysteresis loops in the range 3.5 to 6 K. The magnetization jumps were successfully simulated using the adiabatic approximation which was developed for type-II superconductors. (C) 2011 American Institute of Physics. [doi:10.1063/1.3554663]

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