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Dynamic Coercivity and Thermal Decay of Magnetic Media

Published online by Cambridge University Press:  10 February 2011

Kurt Rubin ,
Jason Goldberg ,
Hal Rosen ,
Ernesto Marinero ,
Mary Doemer  and
Manfred Schabes
Kurt Rubin
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
Jason Goldberg
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
Hal Rosen
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
Ernesto Marinero
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
Mary Doemer
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
Manfred Schabes
Affiliation:
IBM Research, 650 Harry Road, San Jose, Ca 95120, rubinka@almaden.ibm.com
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Abstract

Thermally induced decay of longitudinally recorded magnetic transitions is measured on a spin-stand. The decay rate increases with increased linear density and decreases with increased media coercivity. A new spin-stand experimental technique has been developed which allows measurements of the time dependence of the media coercivity as a function of write times spanning short times characteristic of write times in drives to long times associated with VSM measurements. The ratio of long to short write time coercivity was larger for media which are thermally unstable.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 517: Symposium F – Wide Bandgap Semiconductors for High Power, High Frequency , January 1998 , 261
Copyright
Copyright © Materials Research Society 1998

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References

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