By Topic

Amorphous Fiber Core Head with Low Power Dissipation for Magnetic Field Modulation on Magneto-Optic Recording

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

1 Author(s)
Nagaki, T. ; Sony Res. Center.

CoFeSiB system soft magnetic amorphous fiber with an as-drawn diameter of about 10 ¿m (AMFD) exhibits a unique B-H loop in the MHz range. We determined that if the AMFD core is used at about 1 kG at 1 MHz, the core loss is extremely low (1.7 J/m3), although the permeability is also low (200). We designed and fabricated a magnetic head employing an AFMD core for magneto-optical recording by magnetic field modulation, with an AMFD bundle center core piece 1 mm in diameter. Comparison of the AMFD core head with a conventional ferrite head shows that losses in the former are about 60% of those in the latter, under the same conditions of magnetic field and inductance.

Published in:

Magnetics in Japan, IEEE Translation Journal on  (Volume:5 ,  Issue: 4 )