| http://www.w3.org/ns/prov#value | - The end regions 11 and 12 are physically separated by an air gap 13 which has in the vicinity of the magnetic poles Mp1 and Mp2 an advantageously small longitudinal width g of less than 1 ??m and in particular less than 0.5 ??m and preferably less than 0.25 ??m, i.e., in the direction of relative motion v of the magnetic head.
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