Perpendicularly magnetized ferrimagnetic [Mn50Ga50/Co2FeAl] superlattice and the utilization in magnetic tunnel junctions
Source abstract
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.
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Research context
OpenAlex topics: Magnetic properties of thin films · Magnetic and transport properties of perovskites and related materials · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tohoku University 1 WPI Advanced Institute for Materials Research, , 2-1-1, Katahira, 980-8577 Sendai, Japan
Northeastern University 2 Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), , Shenyang 110819, China
Funding
Grant-in-Aid for Scientific Research · Strategic Japanese-German Cooperative Program ASPIMATT · Asahi Glass Foundation
References (24)
Show source-provided references
1. J. Appl. Phys. · 1994 · 76 · 667310.1063/1.358164 ↗
2. J. Magn. Magn. Mater. · 1995 · 139 · L23110.1016/0304-8853(95)90001-2 ↗
3. Phys. Rev. Lett. · 1995 · 74 · 327310.1103/PhysRevLett.74.3273 ↗
4. Nat. Mater. · 2004 · 3 · 86210.1038/nmat1256 ↗
5. Nat. Mater. · 2004 · 3 · 86810.1038/nmat1257 ↗
6. Science · 2005 · 307 · 22810.1126/science.1105722 ↗
7. Science · 2007 · 315 · 34910.1126/science.1136629 ↗
8. Nat. Nano. · 2009 · 4 · 15810.1038/nnano.2008.406 ↗
9. IEEE Trans. Magn. · 2000 · 36 · 1010.1109/20.824418 ↗
10. Nat. Mater. · 2010 · 9 · 72110.1038/nmat2804 ↗
11. Appl. Phys. Lett. · 2010 · 9 · 721
12. Adv. Mater. · 2012 · 24 · 628310.1002/adma.201201879 ↗
13. Phys. Rev. Lett. · 2011 · 106 · 11720110.1103/PhysRevLett.106.117201 ↗
14. Phys. Rev. B · 2011 · 83 · 020405(R)10.1103/PhysRevB.83.020405 ↗
15. Nat. Mater. · 2006 · 5 · 21010.1038/nmat1595 ↗
16. Nat. Mater. · 2004 · 3 · 26310.1038/nmat1094 ↗
17. Nat. Mater. · 2005 · 4 · 20310.1038/nmat1324 ↗
18. IEEE Trans. Magn. · 2001 · 37 · 147510.1109/20.950875 ↗
19. Appl. Phys. Lett. · 2000 · 77 · 380610.1063/1.1329868 ↗
20. Sci. Rep. · 2015 · 5 · 786310.1038/srep07863 ↗
21. 2010
22. J. Appl. Phys. · 2014 · 116 · 23390410.1063/1.4904348 ↗
23. Phys. Rev. Lett. · 2014 · 112 · 15720210.1103/PhysRevLett.112.157202 ↗
24. Appl. Phys. Lett. · 2012 · 101 · 03240210.1063/1.4737000 ↗