A thin film magnetic structure for use as a flux guide in a magnetic recording system has tapered edges transverse to the magnetization axis of the film. The tapered edges eliminate magnetic edge domains and thereby assure a single magnetic domain in the film structure. Thus, Barkhausen noise is essentially...http://www.google.com.au/patents/US5483403?utm_source=gb-gplus-sharePatent US5483403 - Thin film magnetic head structure having tapered side edges
