Magnetoelectronic devices: heads, memories and sensors

Paulo Freitas ,  Ricardo Ferreira 

Instituto de Engenharia de Sistemas e Computadores Microsistemas & Nanotecnologia, Rua Alves Redol, nº 9, Lisbon 1000-029, Portugal

Abstract

Recent advances in magnetoelectronic devices are discussed including read heads, non volatile memories and sensors. For read heads, low RA AlOx and MgO barriers are compared, and junction structure discussed. High frequency (GHz) noise characteristics are discussed. Alternative CPP spin valve stacks are reviewed, in particular structures with current confined paths. For memory applications, thermally assisted MRAMS and spin transfer driven MRAM are discussed. Particular MTJ stacks used in both applications are reviewed. Finally, for sensor applications, it is shown that with new MgO barriers, highly sensitive field detectors can be fabricated with noise levels reaching 10-11 T/sqr(Hz).

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: http://science24.com/paper/4144 must be provided.

 

Related papers
  1. Thermopower in nano specular spin valves
  2. Electromigration-driven resistance switching in magnetic and non-magnetic tunnel junctions

Presentation: invited oral at E-MRS Fall Meeting 2005, Symposium D, by Ricardo Ferreira
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-30 20:19
Revised:   2009-06-07 00:44
Google
 
Web science24.com
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine