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|Title:||Studies on the scaling of fundamental AC susceptibility in high temperature superconductors||Authors:||Qin, M.J.
|Issue Date:||1-Apr-2000||Citation:||Qin, M.J., Ong, C.K. (2000-04-01). Studies on the scaling of fundamental AC susceptibility in high temperature superconductors. Physica C: Superconductivity and its Applications 331 (1) : 18-24. ScholarBank@NUS Repository. https://doi.org/10.1016/S0921-4534(99)00626-7||Abstract:||The fundamental AC susceptibilities (ACS, χ = χ′ - iχ″) of a superconducting slab immersed in an applied DC magnetic field have been calculated by solving the flux diffusion equation. A universal scaling law follows when ACS are measured as a function of AC field amplitude at fixed temperature T in the case of U(j) = U0ln(jc/j). However, the scaling relation fails when ACS are measured as a function of temperature; only the reduced value of χ″/χ″max can be scaled. The calculations also indicate that at large value of U0/kBT, ACS become independent on AC field frequency, and therefore, the critical state can be used to describe ACS in this case. ACS as a function of AC field amplitude and temperature using U(j) = (U0/μ)[(jc/j)μ - 1] have also been calculated; both cannot be scaled, only the reduced value of χ″/χ″max can be scaled.||Source Title:||Physica C: Superconductivity and its Applications||URI:||http://scholarbank.nus.edu.sg/handle/10635/98082||ISSN:||09214534||DOI:||10.1016/S0921-4534(99)00626-7|
|Appears in Collections:||Staff Publications|
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