US 7,593,758 B2
Segmented superconducting tape having reduced AC losses and method of making
Stephen R. Foltyn, Los Alamos, N. Mex. (US); Quanxi Jia, Los Alamos, N. Mex. (US); Paul N. Arendt, Los Alamos, N. Mex. (US); Terry G. Holesinger, Los Alamos, N. Mex. (US); and Haiyan Wang, Los Alamos, N. Mex. (US)
Assigned to Los Alamos National Security, LLC, Los Alamos, N. Mex. (US)
Filed on Oct. 06, 2005, as Appl. No. 11/245,722.
Prior Publication US 2007/0191202 A1, Aug. 16, 2007
Int. Cl. H01B 12/00 (2006.01); H01L 39/06 (2006.01)
U.S. Cl. 505—231  [505/237; 505/238; 428/697; 428/701; 428/702; 174/125.1; 29/599] 21 Claims
OG exemplary drawing
 
1. A superconducting tape having reduced AC losses, the superconducting tape comprising:
a) a tape substrate;
b) at least one buffer layer disposed on the tape substrate;
c) a superconducting layer disposed on the at least one buffer layer; and
d) a plurality of disruptive strips on one of the tape substrate, the at least one buffer layer, and the superconducting layer, wherein each of the plurality of disruptive strips is substantially parallel to the current flow direction of the superconducting tape, and wherein the plurality of disruptive strips causes parallel discontinuities in electrical properties of the layer of superconducting material that reduce AC losses in the superconducting tape, said disruptive strips comprising a contaminant material.