Texture induced spatial variation in switching fields

A method for mapping the microscopic spatial variation of switching fields in magnetic recording media using a magnetic force microscope is described. The method is applied to samples with different substrate textures to examine the effect of texture on magnetic switching behavior. Reversals are fou...

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Bibliographic Details
Published in:IEEE transactions on magnetics 1999-09, Vol.35 (5), p.3995-3997
Main Authors: Jander, A., Indeck, R.S., Muller, M.W.
Format: Article
Language:English
Subjects:
Anisotropic magnetoresistance
Applied sciences
Coercive force
Disk recording
Electronics
Exact sciences and technology
Magnetic devices
Magnetic fields
Magnetic force microscopy
Magnetic forces
Magnetic heads
Magnetic properties
Magnetic recording
Magnetic switching
Magnetic thin film devices: magnetic heads (magnetoresistive, inductive, etc.)
domain-motion devices, etc
Media
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Substrates
Surface layer
Switching
Texture
Texturing
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Summary:A method for mapping the microscopic spatial variation of switching fields in magnetic recording media using a magnetic force microscope is described. The method is applied to samples with different substrate textures to examine the effect of texture on magnetic switching behavior. Reversals are found to occur in chains along the texture direction for fields coincident with the texturing. For fields applied transverse to the texture, no long range order is seen in the reversal process. Untextured media also show some tendency for reversal to progress along the field direction.
ISSN:0018-9464
1941-0069
DOI:10.1109/20.800733