Self fields at 20 K and 15 K above the edges of the bridges mentioned in Table I (i) as reported in Refs. 12 and 13 from magneto-optical measurements and (ii) calculated with Eq. (9). The insets show the value of the corresponding internal field.
Comparison between (i) the values of the self field at h = 3 μm above the edges of the sample investigated in Ref. 12, calculated with Eq.(8) and the sheet current distributions reported by the authors (stars) and (ii) the self field at the surface calculated with Eqs. (5)–(7) and the Brandt expression [Eqs. (10) and (11)] (open circles). The bar at I = 4.3 A shows how changes for .
Self field above the edges of the coated conductors investigated (a) by Polak et al. 14 and (b) by Yoo et al. 15 as a function of the transport current. The full squares are the values measured 250 μm above the sample by Polak et al. and those calculated by Yoo et al. for a distance equal to 40 μm from measurements carried out 400 μm above the sample, respectively; the open squares and the open circles are calculated with Eqs. (5) and (7) using Eqs. (9)–(11), respectively, to determine the demagnetizing factor.
Measurement temperature T, width w, thickness d, and length L of the bridges investigated in Refs. 12 and 13; h is the effective separation between the magneto-optical indicator and the films.
Fields and currents applied during the measurements of Yooet al. 1 5
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