Comment on ‘‘Exact solution for flux creep with logarithmic U(j) dependence: Self-organized critical state in high-<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="italic">T</mi></mrow><mrow><mi mathvariant="italic">c</mi></mrow></msub></mrow></math> superconductors’’

A published resutl for flux creep in type-II superconductors from a nonlinear diffusion equation is discussed. (AIP)

DOI:https://doi.org/10.1103/PhysRevLett.68.2706

Faculty of Physics and Astronomy, Free University Amsterdam, 1081 HV Amsterdam, The Netherlands

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Physical Review Letters