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Profile of a groove; the depth is about and it extends well into the Hastelloy substrate, cutting through silver, YBCO, and buffer layers. The width of the groove is nominally close to . The delamination from the substrate to the right may be the result of sample preparation for microphotography, rather than that of laser ablation.
(a) (Color online) Energy loss per cycle in the eight-filament coated conductor vs amplitude of applied magnetic field. (b) The specific power loss vs sweep rate in the control (nonstriated) and the eight-filament conductor. For both samples the data are shown for the same frequencies as in (a). The loss is normalized by the respective critical currents indicated in the figure. The saturation levels of the specific loss, 3 and , respectively, are indicated.
(Color online) Specific loss of the eight-filament sample [Fig. 2(b)] and that of the 20-filament, wide sample that was not subjected to postablation oxygenation. The dashed straight line is a linear fit that corresponds to Eq. (2). The slope is the measure of the coupling losses.
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