Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
73 (1993), S. 2027-2028
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We describe an in situ nondestructive method to measure the intergranular coupling in magnetic thin film recording media based on Stoner–Wohlfarth switching theory [Philos. Trans. Roy. Soc. London A 240, 599 (1948)]. The method uses recording write and read heads and a disk test stand to measure a medium's remanence curves from saturation and demagnetization. Using this technique, we have measured Henkel plots [Phys. Status. Solidi 7, 919 (1964)] for single layer and multiple layer longitudinal media, as well as a Henkel plot for a perpendicular thin film with a highly permeable underlayer, which cannot be obtained by the conventional vibrating sample magnetometer method.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.353145
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