@article {1269,
title = {Field and current distributions and ac losses in a bifilar stack of superconducting strips},
journal = {Physical Review B},
volume = {77},
number = {13},
year = {2008},
month = {Apr},
pages = {134506},
type = {Article},
abstract = {In this paper, I first analytically calculate the magnetic-field and sheet-current distributions generated in an infinite stack of thin superconducting strips of thickness d, width 2a >> d, and arbitrary separation D when adjacent strips carry net current of magnitude I in opposite directions. Each strip is assumed to have uniform critical current density J(c), critical sheet-current density K-c=J(c)d, and critical current I-c=2aK(c), and the distribution of the current density within each strip is assumed to obey critical-state theory. I then derive expressions for the ac losses due to magnetic-flux penetration both from the strip edges and from the top and bottom of each strip and I express the results in terms of integrals involving the perpendicular and parallel components of the magnetic field. After numerically evaluating the ac losses for typical dimensions, I present analytic expressions from which the losses can be estimated.},
keywords = {ARRAYS, CONDUCTOR, CRITICAL-STATE, FAULT CURRENT LIMITERS, II-SUPERCONDUCTOR, PERPENDICULAR MAGNETIC-FIELD, TRANSPORT CURRENTS, YBCO-COATED},
isbn = {1098-0121},
doi = {10.1103/PhysRevB.77.134506},
author = {Clem, J. R.}
}