DocumentCode :
1399813
Title :
Pseudo Spin Valves Using a (1 1 2)-Textured D0 
Mn 
Ga Fixed Laye
Author :
Zha, C.L. ; Dumas, R.K. ; Persson, J. ; Mohseni, S.M. ; Nogues, J. ; Akerman, J.
Author_Institution :
Mater. Phys. Div., R. Inst. of Technol. (KTH), Kista, Sweden
Volume :
1
fYear :
2010
fDate :
7/2/1905 12:00:00 AM
Firstpage :
2500104
Lastpage :
2500104
Abstract :
We demonstrate pseudo spin valves (PSVs) with a (112)-textured D022 Mn2.3-2.4Ga (MnGa) tilted magnetization fixed layer and an in-plane CoFe free layer. Single D022 MnGa films exhibit a small magnetoresistance (MR) typically observed in metals. In MnGa/Cu/CoFe PSVs, a transition from a negative (-0.08%) to positive (3.88%) MR is realized by introducing a thin spin polarizing CoFe insertion layer at the MnGa/Cu interface and tailoring the MnGa thickness. Finally, the exchange coupling between the MnGa and CoFe insertion layer is studied using a first-order reversal curve technique.
Keywords :
cobalt alloys; copper; exchange interactions (electron); gallium alloys; iron alloys; magnetic multilayers; magnetisation; magnetoelectronics; magnetoresistance; manganese alloys; spin valves; sputter deposition; (112)-textured fixed layer; D022 ordered alloy; MnGa-Cu-CoFe; exchange coupling; first-order reversal curve technique; in-plane free layer; magnetoresistance; pseudo spin valves; thin spin polarizing insertion layer; tilted magnetization fixed layer; Giant magnetoresistance; Magnetic anisotropy; Magnetic materials; Magnetization; Magnetosphere; Perpendicular magnetic anisotropy; Physics; Polarization; Spin valves; Torque; D0$_{22}$
fLanguage :
English
Journal_Title :
Magnetics Letters, IEEE
Publisher :
ieee
ISSN :
1949-307X
Type :
jour
DOI :
10.1109/LMAG.2009.2039774
Filename :
5402688
Link To Document :
