Perpendicularly magnetized ferrimagnetic [Mn50Ga50/Co2FeAl] superlattice and the utilization in magnetic tunnel junctions

Q. L. Ma, X. M. Zhang, T. Miyazaki, S. Mizukami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The ferrimagnetic superlattice (SL) [MnGa/Co2FeAl]n exhibiting perpendicular magnetic anisotropy opened a new method for spintronics materials used in magnetic random access memory, because of the high anisotropy, small damping constant and tunable magnetization. In this work, we fabricated SLs with different MnGa composition and studied the MnGa composition dependence of the structure and magnetic properties of the SLs. Furthermore, we fabricated fully perpendicular magnetic tunnel junctions with SLs as both top and bottom electrodes. A clear tunnel magnetoresistance (TMR) effect with TMR ratio of 1.3% at room temperature was observed.

Original languageEnglish
Article number087177
JournalAIP Advances
Volume5
Issue number8
DOIs
Publication statusPublished - 2015 Aug 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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