further wherein the gap contains at least one layer of {HEAD ~ superconducting material} arranged in {TAIL ~ a direction} substantially perpendicular to the recording surface of the recording medium and 
arranged in
further wherein the gap contains at least one layer of { HEAD ~ superconducting material } arranged in { TAIL ~ a direction } substantially perpendicular to the recording surface of the recording medium and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH