Thermal and magnetic stability of unidirectional anisotropy in spin-valve magnetoresistive heads

1998 ◽  
Vol 34 (4) ◽  
pp. 1429-1431 ◽  
Author(s):  
N. Ohshima ◽  
M. Nakada ◽  
Y. Tsukamoto
Keyword(s):  
Spin Valve ◽  
Magnetoresistive Heads ◽  
Unidirectional Anisotropy ◽  
Magnetic Stability

Spin transfer effect in spin-valve pillars for current-perpendicular-to-plane magnetoresistive heads (invited)

2004 ◽  
Vol 95 (11) ◽  
pp. 7423-7428 ◽  
Author(s):  
K. J. Lee ◽  
Y. Liu ◽  
A. Deac ◽  
M. Li ◽  
J. W. Chang ◽  
...  
Keyword(s):  
Spin Valve ◽  
Transfer Effect ◽  
Spin Transfer ◽  
Magnetoresistive Heads ◽  
Current Perpendicular To Plane

ROOM-TEMPERATURE ANTIFERROMAGNETIC TUNNELING ANISOTROPIC MAGNETORESISTANCE

SPIN ◽  
2013 ◽  
Vol 03 (01) ◽  
pp. 1350005 ◽  
Author(s):  
Y. Y. WANG ◽  
C. SONG ◽  
B. CUI ◽  
G. Y. WANG ◽  
F. ZENG ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Electrical Transport ◽  
Room Temperature ◽  
Tunnel Junctions ◽  
Spin Valve ◽  
Anisotropic Magnetoresistance ◽  
Operation Temperature ◽  
Exchange Spring ◽  
Unidirectional Anisotropy

We systematically investigate the room-temperature antiferromagnetic tunneling anisotropic magnetoresistance (TAMR) effect in [Pt/Co] / IrMn/AlO x/ Pt vertical tunnel junctions as a function of IrMn thicknesses and field directions. The experimental results indicate that a partial rotation of IrMn moments is triggered by ferromagnetic Co/Pt with the formation of exchange-spring in vertical fields, whereas two distinct modes of positive and negative spin-valve-like signals are detected with different in-plane fields due to the unidirectional anisotropy of IrMn . Electrical transport and magnetization reversal measurements confirm the crucial role of stable antiferromagnetic IrMn moments in the observed TAMR effect, which is profoundly affected by the operation temperature, IrMn thicknesses, magnetic fields and field directions.

The Annealing Effect of Spin-Valve-Like Ferromagnetic Tunnel Junction

1999 ◽  
Vol 23 (1_2) ◽  
pp. 49-51 ◽  
Author(s):  
H. Kikuchi ◽  
K. Kobayashi ◽  
M. Sato
Keyword(s):  
Tunnel Junction ◽  
Spin Valve ◽  
Annealing Effect
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