scholarly journals Effect of Interlayer Coupling on the Magnetization Process of a Free Layer in Spin-Valve Films.

2002 ◽  
Vol 26 (4) ◽  
pp. 418-421
Author(s):  
K. Imakita ◽  
M. Tsunoda ◽  
M. Takahashi
Keyword(s):  
Spin Valve ◽  
Interlayer Coupling ◽  
Magnetization Process ◽  
Free Layer

Insertion of a Specular Reflective and Transmissive Nano-Oxide Layer into Giant Magnetoresistance Spin-Valve Structure

2006 ◽  
Vol 6 (11) ◽  
pp. 3483-3486
Author(s):  
Chunghee Nam ◽  
Youngman Jang ◽  
Ki-Su Lee ◽  
Jungjin Shim ◽  
B. K. Cho
Keyword(s):  
Oxide Layer ◽  
Sheet Resistance ◽  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Interlayer Coupling ◽  
Free Layer ◽  
Uniform Layer ◽  
Nano Oxide ◽  
Valve Structure ◽  
Current Shunt

We have studied the influence of the insertion of a nano-oxide layer (NOL) into a magnetic GMR spin-valve. It was found that the spin-valve with NOL has a higher GMR ratio than that of the normal spin-valve without NOL. Naturally formed NOL without vacuum break shows a uniform layer, which effectively suppresses the current shunt, resulting in the reduction of the sheet resistance of GMR. The NOL spin-valve also shows a lower interlayer coupling (Hin) than that of the optimal normal spin-valve, which is consistent with AFM measurement showing lower roughness of NOL formed CoFe surface. Based on the advantage of NOL, we succeeded in lowering Hin while maintaining GMR ratio by insertion of NOL inside the CoFe free layer, where the free layer consists of CoFe/NOL/CoFe/NOL/Capping layer.

INTERLAYER COUPLING AND MAGNETIC ANISOTROPY AS KEY FACTORS FOR CREATION OF HYSTERESIS-LESS SPIN VALVES

SPIN ◽  
2014 ◽  
Vol 04 (01) ◽  
pp. 1440001 ◽  
Author(s):  
V. V. USTINOV ◽  
M. A. MILYAEV ◽  
L. I. NAUMOVA
Keyword(s):  
Magnetic Field ◽  
Magnetic Anisotropy ◽  
Applied Magnetic Field ◽  
Easy Axis ◽  
Spin Valve ◽  
Interlayer Coupling ◽  
Spin Valves ◽  
Free Layer ◽  
Key Factors ◽  
Low Field

The dependence of the free layer coercivity on the applied magnetic field (MF) deviation from the main anisotropy directions (free layer easy axis (EA) and pinning direction (PD)) and on 〈111〉 texture strength have been studied on [ Ta , ( Ni 80 Fe 20)60 Cr 40]/ Ni 80 Fe 20/ Co 90 Fe 10/ Cu / Co 90 Fe 10/ Mn 75 Ir 25/ Ta spin valves. The effect of interlayer coupling, magnetic anisotropy and texture on the spin valve coercivity is analyzed. Technological steps aimed at the low field coercivity reduction down to few tenths Oersted have been received.

High-sensitive hysteresisless spin valve with a composite free layer

2012 ◽  
Vol 113 (4) ◽  
pp. 341-348 ◽  
Author(s):  
V. V. Ustinov ◽  
M. A. Milyaev ◽  
L. I. Naumova ◽  
V. V. Proglyado ◽  
N. S. Bannikova ◽  
...  
Keyword(s):  
Spin Valve ◽  
Free Layer

scholarly journals Spin Transfer Switching and Interlayer Coupling in CPP-GMR Structures with GdFeCo Free Layer

2010 ◽  
Vol 130 (7) ◽  
pp. 631-635
Author(s):  
Tomohiro Kozawa ◽  
Takeshi Kato ◽  
Satoshi Iwata ◽  
Shigeru Tsunashima
Keyword(s):  
Interlayer Coupling ◽  
Spin Transfer ◽  
Free Layer
Sign in / Sign up

Export Citation Format

Share Document