Abstract
The effect of Ta, Cr and Cr90Ru10 seed layers on the magnetoelectronic properties of Co/Pd multilayers based pseudo-spin-valves (PSV) with perpendicular magnetic anisotropy (PMA) was investigated. Giant magnetoresistance curves of the PSV show the degradation of PMA with thicker Cr and CrRu seed layers, but no degradation was observed for Ta up to 50 Å. It appears that after the deposition of an intial amorphous wetting layer up to 20 Å, Cr and CrRu seed layers start to form three-dimensional clusters that do not favor the fcc (111) orientation of the Pd seed layer and Co/Pd multilayers. This resulted in a significant reduction of the PMA for thicker Cr and CrRu seed layers, such that well-separated switching of the magnetic layers cannot be achieved.
| Original language | English |
|---|---|
| Article number | 5467642 |
| Pages (from-to) | 1933-1936 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 46 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 2010 |
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Keywords
- Crystallography
- Giant magnetoresistance
- Perpendicular magnetic anisotropy
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
Cite this
Effect of different seed layers on magnetic and transport properties of perpendicular anisotropic spin valves. / Tahmasebi, Taiebeh; Piramanayagam, S. N.; Sbiaa, Rachid; Law, Randall; Chong, Tow Chong.
In: IEEE Transactions on Magnetics, Vol. 46, No. 6, 5467642, 06.2010, p. 1933-1936.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of different seed layers on magnetic and transport properties of perpendicular anisotropic spin valves
AU - Tahmasebi, Taiebeh
AU - Piramanayagam, S. N.
AU - Sbiaa, Rachid
AU - Law, Randall
AU - Chong, Tow Chong
PY - 2010/6
Y1 - 2010/6
N2 - The effect of Ta, Cr and Cr90Ru10 seed layers on the magnetoelectronic properties of Co/Pd multilayers based pseudo-spin-valves (PSV) with perpendicular magnetic anisotropy (PMA) was investigated. Giant magnetoresistance curves of the PSV show the degradation of PMA with thicker Cr and CrRu seed layers, but no degradation was observed for Ta up to 50 Å. It appears that after the deposition of an intial amorphous wetting layer up to 20 Å, Cr and CrRu seed layers start to form three-dimensional clusters that do not favor the fcc (111) orientation of the Pd seed layer and Co/Pd multilayers. This resulted in a significant reduction of the PMA for thicker Cr and CrRu seed layers, such that well-separated switching of the magnetic layers cannot be achieved.
AB - The effect of Ta, Cr and Cr90Ru10 seed layers on the magnetoelectronic properties of Co/Pd multilayers based pseudo-spin-valves (PSV) with perpendicular magnetic anisotropy (PMA) was investigated. Giant magnetoresistance curves of the PSV show the degradation of PMA with thicker Cr and CrRu seed layers, but no degradation was observed for Ta up to 50 Å. It appears that after the deposition of an intial amorphous wetting layer up to 20 Å, Cr and CrRu seed layers start to form three-dimensional clusters that do not favor the fcc (111) orientation of the Pd seed layer and Co/Pd multilayers. This resulted in a significant reduction of the PMA for thicker Cr and CrRu seed layers, such that well-separated switching of the magnetic layers cannot be achieved.
KW - Crystallography
KW - Giant magnetoresistance
KW - Perpendicular magnetic anisotropy
UR - http://www.scopus.com/inward/record.url?scp=77952819207&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77952819207&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2010.2041905
DO - 10.1109/TMAG.2010.2041905
M3 - Article
VL - 46
SP - 1933
EP - 1936
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 6
M1 - 5467642
ER -