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Lorentz transmission electron microscopy study of micromagnetic structures in real computer hard disks

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6 Author(s)
K. Tang ; Dept. of Mater. Sci. & Eng., Stanford Univ., CA, USA ; M. R. Visokay ; C. A. Ross ; R. Ranjan
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We have studied micromagnetic structures in real computer hard disks, with emphasis on magnetic vortices and ripples at bit-transition regions and track edges, using Lorentz transmission electron microscopy (LTEM). A combined dimpling and chemical etching was used to produce LTEM specimens of Co alloy/Cr with large, uniformly thin areas from the typical C/Co alloy/Cr/NiP/Al(substrate) hard disk structures

Published in:

IEEE Transactions on Magnetics  (Volume:32 ,  Issue: 5 )