Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Thermal Longevity of Nano-Multilayer Magnetic Media

Published

Author(s)

Edward Della Torre, Lawrence H. Bennett

Abstract

A common concern about the use of particles a few nanometers in size in their stability. This paper addresses a technique for estimating the longevity on the basis of measurements that can be made in a reasonable time. Using the recently developed Preisach-Arrhenius model, the decay rate can be quantified using the chemical potential. Measurements in Co/Pt multilayers media have shown that at room temperature the fluctuating field is 2.61 mT. Since at room temperature, the entire decay can be seen when a field near the coercivity is applied, the longevity can be estimated at other holding fields by a linear extrapolaton.
Citation
IEEE Transactions on Nanotechnology

Keywords

coercivity, nano-multilayer magnetic media, Preisach-Arrhenius model, thermal longevity

Citation

Della, E. and Bennett, L. (2002), Thermal Longevity of Nano-Multilayer Magnetic Media, IEEE Transactions on Nanotechnology (Accessed July 15, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 21, 2002, Updated February 17, 2017