Magnetic Switching in BPM, TEAMR, and Modified TEAMR Using Dielectric Underlayer Media
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Publication Details
Author list: Aksornniem S., Evans R.F.L., Chantrell R.W., Silapunt R.
Publisher: Institute of Electrical and Electronics Engineers
Publication year: 2016
Volume number: 52
Issue number: 2
ISSN: 0018-9464
eISSN: 1941-0069
Languages: English-Great Britain (EN-GB)
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Abstract
In this paper, we study the coercivity of bit-patterned media, trapping electron-assisted magnetic recording (TEAMR), and modified TEAMR (M-TEAMR) media using a dielectric underlayer. The VAMPIRE magnetic simulator is used to model three structures of recording bits and to study the M - H loops using an atomistic spin model. The results show that the magnetic switching reduction in M-TEAMR and TEAMR depends on the bit size. The percentage of magnetic switching reduction in M-TEAMR is also larger than TEAMR for all bit sizes. For a bit size of 1.6ื 1.6 ื 3.2 nm3, the percentage of magnetic switching reduction in M-TEAMR is approximately four times higher than that in TEAMR. ฉ 1965-2012 IEEE.
Keywords
atomistic spin model, electron trapping assisted recording, magnetic data storage device, TEAMR, VAMPIRE magnetic simulator
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