Heat Assisted Magnetization Reversal on Perpendicular Magnetized Nano-Dot  

Oleh:

Wibowo, Nur Aji ; Cari ; Purnama, Budi

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: IPTEK: The Journal for Technology and Science vol. 22 no. 2 (May 2011), page 57-64.
Topik: perekaman magnetik; PMA; berbantukan panas; medan threshold; lama pemanasan; lama pendinginan; magnetic recording; PMA; heat assisted; threshold field; heating time and cooling time
Fulltext: 64-111-1-SM.pdf (1.46MB)

Isi artikel

Heat assisted magnetization reversal on perpendicular magnetized nano-dots has been studied by solved Landau Lifshift-Gilbert equation for magnetic recording application. The heat assisted magnetization reversal scheme has been proven to be effectively reduces threshold field down to 90 %. Otherwise, this field doesn’t depend on heating time. To understand a read-write information process, cooling time dependence of threshold field has been evaluated. As a result, the threshold field depends on the cooling time and become constant after 300 ps. This result corresponds to data transfer of Hard Disc Drive about 30 Gb/s.

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