
In this paper we present domain images on the pole tips of thin film tape recording heads using high moment FeAlN pole materials (4/spl pi/M/sub s/=20 kGauss). These heads are of the type used in quarter inch cartridge (QIC) tape drives, with a record gap dimension of 1.9 /spl mu/m, a written trackwidth of 33 /spl mu/m, and a 14 turn coil. The pole thicknesses ranged from 4 to 4.5 /spl mu/m. These heads exhibited domain structures on the pole tips indicative of the blocking of magnetization ripple seen in sheet films of soft magnetic materials with thicknesses less than 1000 /spl Aring/.
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