A study of voltage fluctuation, noise and magnetic instability in spin valve GMR recording heads

1998 ◽  
Vol 34 (4) ◽  
pp. 1450-1452 ◽  
Author(s):  
A. Wallash
Keyword(s):  
Spin Valve ◽  
Voltage Fluctuation ◽  
Magnetic Instability ◽  
Recording Heads ◽  
Fluctuation Noise

Top, bottom, and dual spin valve recording heads with PdPtMn antiferromagnets

1999 ◽  
Vol 35 (2) ◽  
pp. 700-705 ◽  
Author(s):  
A. Tanaka ◽  
Y. Shimizu ◽  
H. Kishi ◽  
K. Nagasaka ◽  
H. Kanai ◽  
...  
Keyword(s):  
Spin Valve ◽  
Recording Heads

Magnetic instability of thin-film recording heads

1994 ◽  
Vol 30 (2) ◽  
pp. 375-380 ◽  
Author(s):  
K.B. Klaassen ◽  
J.C.L. van Peppen
Keyword(s):  
Thin Film ◽  
Magnetic Instability ◽  
Recording Heads

Spin-valve Structures For Recording Heads

2005 ◽  
Author(s):  
V.S. Speriosu ◽  
B.A. Gurney ◽  
R.E. Fontana ◽  
T. Lin ◽  
M.M. Dovek ◽  
...  
Keyword(s):  
Spin Valve ◽  
Recording Heads

Characterization of high density spin valve recording heads by novel magnetic force microscope

1999 ◽  
Vol 35 (5) ◽  
pp. 2625-2627 ◽  
Author(s):  
C.X. Qian ◽  
H.C. Tong ◽  
F.H. Liu ◽  
X. Shi ◽  
S. Dey ◽  
...  
Keyword(s):  
Magnetic Force ◽  
Spin Valve ◽  
High Density ◽  
Magnetic Force Microscope ◽  
Recording Heads

Recent Developments in Magnetic Recording Heads

2002 ◽  
Vol 746 ◽  
Author(s):  
Atsushi Tanaka ◽  
Mitsumasa Oshiki
Keyword(s):  
Spin Valve ◽  
Magnetic Head ◽  
Spin Filter ◽  
Scattering Layer ◽  
Specular Scattering ◽  
Recording Heads ◽  
Read Head ◽  
Recent Developments ◽  
Magnetic Recording Heads ◽  
Future Technologies

ABSTRACTRecently developed and future magnetic head technologies are reviewed. Scaling of dimensions brought about significant increases in recording densities in the last decade. On the recording head aspect, as the read head is narrowed, large improvements in sensitivity are required. Therefore, spin-valve read heads have been improved by introducing synthetic ferromagnetic pinned layers, a spin filter back layer and a specular scattering layer. The current perpendicular to plane (CPP) structure is now being adopted instead of the current in plane (CIP) structure which is the present magnetic head structure. Under heads with a CPP structure, tunneling magnetoresistance (TMR) devices and multilayer GMR are candidates. In CPP mode, we can make better use of “spintronics” or spin-dependent conduction phenomena because device character depends more directly on the spin-dependent electronic states of the materials. Future technologies of read head are also discussed.

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