Title :
A simple statistical model of partial erasure in thin film disk recording systems
Author :
Barndt, R.D. ; Armstrong, A.J. ; Bertram, H.N. ; Wolf, J.K.
Author_Institution :
Center for Magnetic Recording Res., California Univ., San Diego, CA, USA
fDate :
11/1/1991 12:00:00 AM
Abstract :
A simple statistical model of the partial erasure effect in metallic thin-film recording is given. Experimental data are shown and used to determine a fundamental parameter of the micromagnetic structure of the medium. This single parameter determines the extent of erasure at any transition separation. Since it has no (first-order) dependence on the rate of zigzags, it is anticipated that it will be relatively independent of the transition noise amplitude of the medium
Keywords :
hard discs; magnetic recording; magnetic thin film devices; statistical analysis; CoCr medium; metallic thin-film recording; micromagnetic structure; partial erasure effect; statistical model; thin film disk recording systems; thin film readback head; transition noise amplitude; Disk recording; Magnetic analysis; Magnetic domain walls; Magnetic films; Magnetic noise; Magnetic recording; Magnetic separation; Probability density function; Saturation magnetization; Transistors;
Journal_Title :
Magnetics, IEEE Transactions on
