Cart (Loading....) | Create Account
Close category search window

Characterization of an AlO _{\rm x} Tunneling Barrier in a Magnetic Tunnel Junction by a Surface Plasmon Resonance Spectroscopy Technique

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

6 Author(s)
Ki Woong Kim ; Dept. of Phys., Hanyang Univ., Seoul ; Ja Hyun Koo ; Il Jae Shin ; Kwak, June Sik
more authors

We measured tunneling magnetoresistance (TMR) in a magnetic tunnel junction as a function of temperature. We used surface plasmon resonance spectroscopy (SPRS)-one of the most useful tools in the analysis of dielectric function in a thin tunneling barrier-to study the correlation of AlOx barrier quality with the temperature dependent behavior of the TMR ratio. The experimental SPRS analysis suggests that the decrease of the TMR ratio starting at 150 K is caused by residual Al metallic defects distributed within the insulating AlOx barrier. We checked this result by measuring the junction resistances in parallel and antiparallel states.

Published in:

Magnetics, IEEE Transactions on  (Volume:45 ,  Issue: 1 )

Date of Publication:

Jan. 2009

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.