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Write field asymmetry in perpendicular magnetic recording.
- Source :
-
Journal of Applied Physics . Apr2012, Vol. 111 Issue 7, p07B713-07B713-3. 1p. 6 Graphs. - Publication Year :
- 2012
-
Abstract
- We present a systematic study of write field asymmetry by using micromagnetic modeling for a perpendicular magnetic recording (PMR) writer structure. Parameters investigated include initial magnetization condition, write current amplitude, write current frequency, and initial write current polarity. It is found that the write current amplitude and frequency (data rate) are the dominant factors that impact the field asymmetry. Lower write current amplitude and higher write current frequency will deteriorate the write field asymmetry, causing recording performance (such as bit error rate) degradation. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 111
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 74279213
- Full Text :
- https://doi.org/10.1063/1.3679138