Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2010.2043064
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dc.titleSwitching probability distribution of bit islands in bit patterned media
dc.contributor.authorChen, Y.
dc.contributor.authorDing, J.
dc.contributor.authorDeng, J.
dc.contributor.authorHuang, T.
dc.contributor.authorLeong, S.H.
dc.contributor.authorShi, J.
dc.contributor.authorZong, B.
dc.contributor.authorKo, H.Y.Y.
dc.contributor.authorAu, C.K.
dc.contributor.authorHu, S.
dc.contributor.authorLiu, B.
dc.date.accessioned2014-06-19T09:34:15Z
dc.date.available2014-06-19T09:34:15Z
dc.date.issued2010-06
dc.identifier.citationChen, Y., Ding, J., Deng, J., Huang, T., Leong, S.H., Shi, J., Zong, B., Ko, H.Y.Y., Au, C.K., Hu, S., Liu, B. (2010-06). Switching probability distribution of bit islands in bit patterned media. IEEE Transactions on Magnetics 46 (6) : 1990-1993. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2010.2043064
dc.identifier.issn00189464
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/75252
dc.description.abstractIn this paper, we report magnetic force microscopy (MFM) observations of switching probability of individual bit islands in bit patterned media. The switching probability (p) of each island was measured by repeated reversal tests at the same experimental conditions for each switching field (SF). It was found that there are ∼ 60% of islands with 0 < 60 p < 1 for SF = 11 kOe (which is approximately the average remnant coercivity, Hcr of the patterned islands) while the rest of the islands are either switched every time (for magnetically softer islands) or never switched (for magnetically harder islands). The observed statistical behavior of 0 < p < 1 is an indication of thermal fluctuation during switching when magnetostatic energy (due to the applied external field) is comparable to magnetic anisotropy energy. As SF is decreased or increased away from Hcr (11 kOe to 9.5 kOe or 11 kOe to 12.5 kOe), percentage of islands with 0 < 60 p < 1 becomes smaller [narrower switching probability distribution (SPD)], due to less dipolar interaction/ variations among islands [which also lead to less switching field distribution (SFD) broadening]. Our results provide insights on the effects of statistical switching behavior of bit islands on the write errors in bit patterned media recording. © 2006 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TMAG.2010.2043064
dc.sourceScopus
dc.subjectBit patterned media (BPM)
dc.subjectMagnetic force microscopy (MFM)
dc.subjectMagnetic recording
dc.subjectMagnetic reversal
dc.typeConference Paper
dc.contributor.departmentMATERIALS SCIENCE AND ENGINEERING
dc.description.doi10.1109/TMAG.2010.2043064
dc.description.sourcetitleIEEE Transactions on Magnetics
dc.description.volume46
dc.description.issue6
dc.description.page1990-1993
dc.description.codenIEMGA
dc.identifier.isiut000278037800185
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