Current-perpendicular-to-the-plane giant magnetoresistance of an all-metal spin valve structure with Co40Fe40B20 magnetic layer

2010 ◽  
Vol 96 (14) ◽  
pp. 142503 ◽  
Author(s):  
C. Y. You ◽  
N. Tian ◽  
H. S. Goripati ◽  
T. Furubayashi
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Magnetic Layer ◽  
Valve Structure

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 ◽  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Nano Oxide ◽  
Valve Structure

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.

DEPENDENCE OF GIANT MAGNETORESISTANCE ON THE THICKNESS OF MAGNETIC AND NON-MAGNETIC LAYERS IN DUAL SPIN VALVES

2004 ◽  
Vol 18 (09) ◽  
pp. 355-365 ◽  
Author(s):  
YONG WANG ◽  
MING XU ◽  
ZHENHONG MAI
Keyword(s):  
Giant Magnetoresistance ◽  
Classical Model ◽  
Spin Valve ◽  
Magnetic Layer ◽  
Spin Valves ◽  
Experimental Result ◽  
Magnetic Layers ◽  
Ferromagnetic Layers ◽  
Hole Effect ◽  
Good Agreement

Based on the previous semi-classical model, we have performed calculation of the giant magnetoresistance (GMR) as a function of the thickness of the top/bottom or center ferromagnetic layers and the non-magnetic layer in dual spin valves. Our results are in good agreement with that reported in experiment, i.e., a GMR maximum is observed when the thickness of the top/bottom magnetic layer is at 20 ~ 40 Å; the GMR value decreases monotonically with the increase of the non-magnetic layer thickness. By considering the "pin-hole" effect, the variation of GMR versus the thickness of the center magnetic layer is also found to be consistent with the experimental result. These calculations will be helpful in the design of high-quality spin-valve structures.

Effect of probe configuration on spin accumulation in lateral spin-valve structure

2005 ◽  
Vol 286 ◽  
pp. 88-90 ◽  
Author(s):  
T. Kimura ◽  
J. Hamrle ◽  
Y. Otani ◽  
K. Tsukagoshi ◽  
Y. Aoyagi
Keyword(s):  
Spin Valve ◽  
Spin Accumulation ◽  
Valve Structure

Layer selective magnetic moment distribution in an epitaxial double spin valve structure: Si[001]/Cu

1999 ◽  
Vol 35 (5) ◽  
pp. 3847-3849 ◽  
Author(s):  
B.C. Choi ◽  
A. Samad ◽  
W.Y. Lee ◽  
S. Langridge ◽  
J. Penfold ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Spin Valve ◽  
Double Spin ◽  
Moment Distribution ◽  
Valve Structure

Which spin valve for next giant magnetoresistance head generation? (invited)

2000 ◽  
Vol 87 (9) ◽  
pp. 5377-5382 ◽  
Author(s):  
Satoru Araki ◽  
Masashi Sano ◽  
Shuxiang Li ◽  
Yoshihiro Tsuchiya ◽  
Olivier Redon ◽  
...  
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve

Low resistance spin-valve-type current-perpendicular-to-plane giant magnetoresistance with Co75Fe25

2005 ◽  
Vol 97 (10) ◽  
pp. 10C507 ◽  
Author(s):  
Ken-ichi Aoshima ◽  
Nobuhiko Funabashi ◽  
Kenji Machida ◽  
Yasuyoshi Miyamoto ◽  
Kiyoshi Kuga
Keyword(s):  
Giant Magnetoresistance ◽  
Spin Valve ◽  
Low Resistance ◽  
Current Perpendicular To Plane
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