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

Q. L. | Zendy; X. M. Zhang | Zendy; T. Miyazaki | Zendy; Shigemi Mizukami | Zendy

Open Access

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

Author(s) -

Q. L.,

X. M. Zhang,

T. Miyazaki,

Shigemi Mizukami

Publication year - 2015

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4929831

Subject(s) - spintronics , ferrimagnetism , condensed matter physics , materials science , superlattice , tunnel magnetoresistance , magnetoresistance , magnetic anisotropy , magnetization , perpendicular , ferromagnetism , magnetic field , optoelectronics , physics , quantum mechanics , geometry , mathematics

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

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