Size and shape effects of patterned polycrystalline islands

Na Helian, Frank Wang, Desmond J Mapps, Warwick Clegg, David Wilton, Paul Robinson

Research output: Contribution to journalArticlepeer-review


Patterned polycrystalline cobalt islands with different sizes and shapes have been simulated by a micromagnetic simulator. An elliptic shape is found to be preferred for patterned islands to form a uniform single domain demagnetised state and have sharper squareness compared with square islands. Therefore, in a single-bit-per-island recording system, the elliptic islands could lead to a stable state and a predictable overwrite process and act independently even in a closely packed arrays.
Original languageEnglish
Pages (from-to)3508-3510
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - Sept 1999


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