Measurements of the write error rate in bit patterned magnetic recording at 100–320 Gb/in2

Grobis, M.; Dobisz, E.; Hellwig, O.; Schabes, M. E.; Zeltzer, G.; Hauet, T.; Albrecht, T. R.
February 2010
Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p052509
Academic Journal
We demonstrate a technique for measuring the intrinsic bit-error-rate as a function of write misregistration in bit patterned media. We examine the recording performance at bit densities of 100, 200, and 320 Gigabits per square inch (Gb/in2) and find that the on-track write misregistration margin for error rates below 10-4 is ∼1/4 of a bit length for all three densities. We demonstrate two-dimensional recording at sub 10-4 bit error rate at 100 and 200 Gb/in2 and with a 10-3 bit error rate at 320 Gb/in2.


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