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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yamamori, K. Tanaka, T. Jitosho, T. |
| Copyright Year | 1965 |
| Abstract | The effects of perpendicular orientation and coercivity on short wavelength recording characteristics for Ba-ferrite flexible disks (FDs) were investigated. The experimental results indicate that the short wavelength output is roughly proportional to S/sub perpendicular to / square root Hc/sub perpendicular to /, as long as the recording head is not saturated. The results show that the Ba-ferrite FD of Hc/sub perpendicular to /=1400 Oe, S/sub perpendicular to /=0.75, and Ms=120 emu/cc provides larger output than the metal FD of Hc=1560 Oe and Ms=200 emu/cc, at over 300 kFRPI. A novel simple recording method, which uses the FTE (ferrite trailing edge) head, was developed. With this method, the oriented Ba-ferrite FD provides slimmer and more symmetrical longitudinal-recording-like waveforms than the metal FD, without trading off the superior short wavelength output. The essential mechanism regarding how the FTE head works is assumed to be due to a time-lagged canceling effect for the perpendicular component of the remanent magnetization.< |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 4960 |
| Ending Page | 4962 |
| Page Count | 3 |
| File Size | 341138 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 27 |
| Issue Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-11-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Disk recording Magnetic heads Coercive force Coatings Demagnetization Equalizers Saturation magnetization Ferrites |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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