TY - JOUR
T1 - Computer simulation of switching characteristics in magnetic tunnel junctions exchange-biased by synthetic antiferromagnets
AU - Uhm, Y. R.
AU - Lim, S. H.
N1 - Funding Information:
The simulation was performed with a program developed at NIST by Dr. John Oti. Financial support from the Tera-level Nanodevices Project (a 21C Frontier Program Funded by the Korean Ministry of Science and Technology) is acknowledged.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/2
Y1 - 2002/2
N2 - The free layer switching characteristics in magnetic tunnel junctions with the structure NiFe/AlOx/Co (ynm)/Ru/Co (7-ynm)/FeMn/NiFe are investigated as functions of the relative Co layer thickness and the cell size by computer simulation. The bias field varies linearly with y, and the relative Co layer thickness dependence of the bias field is greater at smaller cell dimensions. At y = 4, the bias field of the free layer remains nearly unchanged with the cell size, due to the balance of the stray field contribution from neighboring layers. The contribution from the lower permalloy layer (next to the FeMn) is found to be not small. The calculated hysteresis loops are in qualitative agreement with the experimental results.
AB - The free layer switching characteristics in magnetic tunnel junctions with the structure NiFe/AlOx/Co (ynm)/Ru/Co (7-ynm)/FeMn/NiFe are investigated as functions of the relative Co layer thickness and the cell size by computer simulation. The bias field varies linearly with y, and the relative Co layer thickness dependence of the bias field is greater at smaller cell dimensions. At y = 4, the bias field of the free layer remains nearly unchanged with the cell size, due to the balance of the stray field contribution from neighboring layers. The contribution from the lower permalloy layer (next to the FeMn) is found to be not small. The calculated hysteresis loops are in qualitative agreement with the experimental results.
KW - Computer simulation
KW - Magnetic tunnel junctions
KW - Magnetostatic interactions
KW - Size effects
KW - Synthetic antiferromagnets
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U2 - 10.1016/S0304-8853(01)00582-0
DO - 10.1016/S0304-8853(01)00582-0
M3 - Article
AN - SCOPUS:0036465367
SN - 0304-8853
VL - 239
SP - 123
EP - 125
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-3
ER -