Contactless method for measuring the parameters of the current-voltage characteristic of YBCO superconductors in a perpendicular magnetic field
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A contactless method for determination of the parameters of the current-voltage (I—V) characteristic of hard superconductors by measuring the magnetization relaxation of the superconductor in a perpendicular magnetic field has been developed. The relaxation curves obtained for melt-textured YBCO samples are well approximated by the curves calculated within the electrodynamic model based on power-law I—V characteristics. This procedure uses only two fitting parameters: the critical current density J c and the exponent m of the I—V characteristic.
KeywordsVersus Characteristic Critical Current Density Relaxation Curve Hall Probe Perpendicular Magnetic Field
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- 5.Gurevich, A. and Brandt, E.H., Phys. Rev. B: Condens. Matter Mater. Phys., 1995, vol. 52, p. 15442.Google Scholar