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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nan-Hsiung Yeh Xiaowei Wu Roscamp, T. |
| Copyright Year | 1965 |
| Abstract | Understanding and further reduction of transition jitter are extremely critical to future areal density increase in a magnetic recording system. From the μ-track model, jitter power σj2 is directly proportional to the inverse of reader width Wr as long as Wr is much greater than the cross-track correlation length sc. A narrower reader may exhibit a nonlinear behavior in the σj2 versus 1/Wr plot, and this nonlinearity reveals the essential information needed for developing a novel sc extraction scheme. The concept is first verified with the μ-magnetics model and then validated with experimental data. Recording measurement of jitter dependence on Wr is greatly simplified by performing subtraction of two off-track waveforms using a nominal width reader. This analysis has been applied to media series with different grain exchange couplings and grain sizes (GSs) to understand the jitter impact from sc, GS, switching field distribution, and head field gradient. Fundamental media parametrics can be experimentally characterized and related to transition jitter through the revised μ-track model. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1 |
| Ending Page | 4 |
| Page Count | 4 |
| File Size | 1301137 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 50 |
| Issue Number | 11 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Noise Jitter Media Magnetic recording Couplings Mathematical model Magnetic heads signal-to-noise ratio (SNR) 30 recording physics and modeling jitter magnetic recording noise noise measurement |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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