Magnetic properties of superconducting multifilamentary tapes in   perpendicular field. II: Horizontal and matrix arrays
  Current and field profiles, and magnetization and ac losses are calculated for arrays of infinitely long superconducting tapes in the critical state in a perpendicularly applied magnetic field. The tapes are arranged both horizontally and in a matrix configuration, which is the geometry found in many actual high-T_c superconducting tapes. The finite thickness of the tapes and the effects of demagnetizing fields are considered. Systematic results for the magnetization and ac losses of the tapes are obtained as function of the geometry and separation of the constituent tapes. Results allow to understand some unexplained features observed in experiments, as well as to propose some future directions. 
Enric Pardo, Carles Navau, and Alvaro Sanchez