Loss in a striated coated conductor

It is argued that a high-temperature coated conductor, despite being very thin, is described by the same loss theory used for a typical low-temperature superconductor, except that it has anisotropy. However, it is also argued that in both cases for a more complete understanding of the general loss problem the existence of a surface charge must be added to the standard theory. The hysteresis and coupling current loss for a striated coated conductor in a strong perpendicular ac magnetic field (but without net transport current) is computed using the new theory. The total loss is then obtained by adding a term due to eddy current loss in the substrate. The coupling current loss is divided into a transverse and a longitudinal part, where the latter is neglected. The result is compared with measurements published by other authors.