System Maintenance:
There may be intermittent impact on performance while updates are in progress. We apologize for the inconvenience.
By Topic

Observation of recorded tracks in Co-Cr media by magnetic force microscopy

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Bernards, J.P.C. ; Philips Res. Lab., Eindhoven, Netherlands ; den Boef, A.J.

Tracks recorded on two Co-Cr layers having coercivities of 15 kA/m and 45 kA/m were investigated by magnetic force microscopy. Different wavelengths were recorded, corresponding to bit lengths between 0.125 and 0.5 μm. In the case of the layer with the low coercivity, the bits in a track recorded with a wavelength of 0.5 μm were obscured by the meandering nature of the transitions, something which is not observed for the high coercivity layer. This is consistent with a higher noise level and a lower signal level for the low coercivity layer in recording experiments. A more detailed observation of the tracks in the high layer revealed the presence of subdomains in the recorded bits. The extent to which regular domain patterns (recorded bits) or more detailed magnetic structures can be observed depends on the size of the magnetic tip and the distance between tip and layer. The observed width of the intrinsic domains in these layers agrees well with calculated values

Published in:

Magnetics, IEEE Transactions on  (Volume:26 ,  Issue: 5 )