A review of the performance requirements for the writing components of high density tape recording heads is given in the context of multichannel linear tape head arrays. A brief tutorial of head operation is given. This is followed by a discussion of pole materials and head array architectures. Technical advances which have led to increases in data rate and recording density are identified.
James A. Bain,
"Recording heads: write heads for high-density magnetic tape", Proc. SPIE 2604, High-Density Data Recording and Retrieval Technologies, (15 January 1996); doi: 10.1117/12.230052; https://doi.org/10.1117/12.230052