Critical current in type-II superconductors near the order-disorder transition

I. M. Babich; E. H. Brandt; G. P. Mikitik; E. Zeldov

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Critical current in type-II superconductors near the order-disorder transition

机译：II型超导体中无序过渡附近的临界电流

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We investigate theoretically the critical states in a long thin superconducting strip with a critical transport current and in a perpendicular magnetic field, which is close to the field of the order-disorder transition in the vortex lattice. In this investigation, the metastable disordered states and the self-magnetic-neld of the current are taken into account. Using the obtained results, the dependence of the dc critical current in the strip on the applied magnetic field is found near the order-disorder transition. This dependence can be used to describe the peak effect in low-T_c superconductors and the second magnetization peak in high-T_c. superconductors, which occur near this transition.

机译：我们从理论上研究具有临界传输电流和垂直磁场的超薄长超导带中的临界状态，该垂直磁场接近涡旋晶格中有序-无序跃迁的场。在这项研究中，考虑了亚稳态的无序状态和电流的自磁性。使用所获得的结果，发现在带-阶跃变过渡附近，带材中的直流临界电流与所施加的磁场有关。这种依赖性可以用来描述低T_c超导体中的峰值效应和高T_c中的第二磁化峰值。超导体，发生在此过渡附近。

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来源
《Physical review》 |2010年第5期|p.054517.1-054517.7|共7页
作者
I. M. Babich; E. H. Brandt; G. P. Mikitik; E. Zeldov;
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作者单位

Max-Planck-Institut fuer Metallforschung, D-70506 Stuttgart, Germany B. Verkin Institute for Low Temperature Physics & Engineering, Ukrainian Academy of Sciences, Kharkov 61103, Ukraine;

Max-Planck-Institut fuer Metallforschung, D-70506 Stuttgart, Germany;

Max-Planck-Institut fuer Metallforschung, D-70506 Stuttgart, Germany B. Verkin Institute for Low Temperature Physics & Engineering, Ukrainian Academy of Sciences, Kharkov 61103, Ukraine;

Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel;

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critical currents;

机译：临界电流;

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6. Magnetic moment inversion at giant flux jump: dynamical property of critical state in type-II superconductors [O] . Viktor Chabanenko, Adam Nabiałek, Roman Puźniak, -1

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8. Pulsed Current Measurement of the Resistive Transition and Critical Current inHigh T sub c Superconductors [R] . McGinnis, W. C., Jacobs, E. W., Rees, C. D., 1990

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Critical current in type-II superconductors near the order-disorder transition

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