Flux motion in the self-organized critical state of type-II superconductors
- Connecticut Univ., Storrs, CT (United States). Dept. of Physics
- Argonne National Lab., IL (United States)
A model based on the concept of self-organized criticality (SOC) is proposed to describe the nonequilibrium flux dynamics of type-II superconductors. The nonlogarithmic magnetic relaxation of high-{Tc} superconductors is argued as an indication of the SOC. The magnetic relaxation of single crystals of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}, Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} as well as Nb is studied systematically. Relevance to models of the classical Anderson-Kim flux creep, thermally activated flux flow (TAFF), collective creep and vortex-glass is discussed.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10144502
- Report Number(s):
- ANL/MSD/PP--72937; ON: DE94010447
- Country of Publication:
- United States
- Language:
- English
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