Next Article in Journal
Nanoelectromechanical Switches for Low-Power Digital Computing
Previous Article in Journal
Biomimetic-Based Output Feedback for Attitude Stabilization of Rigid Bodies: Real-Time Experimentation on a Quadrotor
Article Menu

Export Article

Open AccessReview
Micromachines 2015, 6(8), 1023-1045; doi:10.3390/mi6081023

Tunnel Junction with Perpendicular Magnetic Anisotropy: Status and Challenges

1
Spintronics Interdisciplinary Centre & School of Electronic and Information Engineering, Beihang University, Beijing 10191, China
2
Institute of Fundamental Electronics (IEF), University of Paris-Sud, Orsay 91405, France
*
Author to whom correspondence should be addressed.
Academic Editor: Miko Elwenspoek
Received: 29 June 2015 / Revised: 29 June 2015 / Accepted: 4 August 2015 / Published: 10 August 2015
View Full-Text   |   Download PDF [5008 KB, uploaded 10 August 2015]   |  

Abstract

Magnetic tunnel junction (MTJ), which arises from emerging spintronics, has the potential to become the basic component of novel memory, logic circuits, and other applications. Particularly since the first demonstration of current induced magnetization switching in MTJ, spin transfer torque magnetic random access memory (STT-MRAM) has sparked a huge interest thanks to its non-volatility, fast access speed, and infinite endurance. However, along with the advanced nodes scaling, MTJ with in-plane magnetic anisotropy suffers from modest thermal stability, high power consumption, and manufactural challenges. To address these concerns, focus of research has converted to the preferable perpendicular magnetic anisotropy (PMA) based MTJ, whereas a number of conditions still have to be met before its practical application. This paper overviews the principles of PMA and STT, where relevant issues are preliminarily discussed. Centering on the interfacial PMA in CoFeB/MgO system, we present the fundamentals and latest progress in the engineering, material, and structural points of view. The last part illustrates potential investigations and applications with regard to MTJ with interfacial PMA. View Full-Text
Keywords: magnetic tunnel junction; perpendicular magnetic anisotropy; spin transfer torque; memory; power consumption; reliability magnetic tunnel junction; perpendicular magnetic anisotropy; spin transfer torque; memory; power consumption; reliability
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Wang, M.; Zhang, Y.; Zhao, X.; Zhao, W. Tunnel Junction with Perpendicular Magnetic Anisotropy: Status and Challenges. Micromachines 2015, 6, 1023-1045.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top