Tunnel magnetoresistance effect using perpendicularly magnetized tetragonal and cubic Mn-Co-Ga Heusler alloy electrode

2014 ◽  
Vol 115 (17) ◽  
pp. 17C704 ◽  
Author(s):  
T. Kubota ◽  
S. Mizukami ◽  
Q. L. Ma ◽  
H. Naganuma ◽  
M. Oogane ◽  
...  
Keyword(s):  
Heusler Alloy ◽  
Alloy Electrode ◽  
Magnetoresistance Effect ◽  
Tunnel Magnetoresistance

Tunnel Magnetoresistance Effect in Tunnel Junctions with Co2MnSi Heusler Alloy Electrode and MgO Barrier

Spintronics ◽  
2013 ◽  
pp. 355-366 ◽  
Author(s):  
Yasuo Ando ◽  
Sumito Tsunegi ◽  
Yuya Sakuraba ◽  
Mikihiko Oogane ◽  
Hiroshi Naganuma ◽  
...  
Keyword(s):  
Heusler Alloy ◽  
Tunnel Junctions ◽  
Alloy Electrode ◽  
Magnetoresistance Effect ◽  
Tunnel Magnetoresistance

scholarly journals Tunnel magnetoresistance effect and magnetic damping in half-metallic Heusler alloys

2011 ◽  
Vol 369 (1948) ◽  
pp. 3037-3053 ◽  
Author(s):  
M. Oogane ◽  
S. Mizukami
Keyword(s):  
Spin Polarization ◽  
High Spin ◽  
Heusler Alloy ◽  
Heusler Alloys ◽  
Magnetoresistance Effect ◽  
Half Metallicity ◽  
Half Metallic ◽  
Tunnel Magnetoresistance ◽  
Magnetic Damping ◽  
High Spin Polarization

Some full-Heusler alloys, such as Co 2 MnSi and Co 2 MnGe, are expected to be half-metallic ferromagnetic material, which has complete spin polarization. They are the most promising materials for realizing half-metallicity at room temperature owing to their high Curie temperature. We demonstrate a huge tunnel magnetoresistance effect in a magnetic tunnel junction using a Co 2 MnSi Heusler alloy electrode. This result proves high spin polarization of the Heusler alloy. We also demonstrate a small magnetic damping constant in Co 2 FeAl epitaxial film. The very high spin polarization and small magnetic constant of Heusler alloys will be a great advantage for future spintronic device applications.

Large tunnel magnetoresistance at room temperature with a Co2FeAl full-Heusler alloy electrode

2005 ◽  
Vol 86 (23) ◽  
pp. 232503 ◽  
Author(s):  
S. Okamura ◽  
A. Miyazaki ◽  
S. Sugimoto ◽  
N. Tezuka ◽  
K. Inomata
Keyword(s):  
Heusler Alloy ◽  
Room Temperature ◽  
Alloy Electrode ◽  
Tunnel Magnetoresistance ◽  
Large Tunnel ◽  
Full Heusler

Large tunnel magnetoresistance in magnetic tunnel junctions using a Co2MnSi Heusler alloy electrode and a MgO barrier

2008 ◽  
Vol 93 (11) ◽  
pp. 112506 ◽  
Author(s):  
Sumito Tsunegi ◽  
Yuya Sakuraba ◽  
Mikihiko Oogane ◽  
Koki Takanashi ◽  
Yasuo Ando
Keyword(s):  
Heusler Alloy ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Alloy Electrode ◽  
Tunnel Magnetoresistance ◽  
Large Tunnel
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