Physical Properties of CoFe/IrMn Spin-Valves Prepared Using Ion Beam Sputtering with an Xe-H 2 Mixture Gas
Co 90 Fe 10 /Cu/Co 90 Fe 10 /Ir 25 Mn 75 spin-valves with a Ta seed layer were prepared by ion beam sputtering. Improvements in magnetoresistive (MR) and magnetic properties were obtained by adding H 2 to Xe sputtering gas. Specifically, the coercivity in the free Co 90 Fe 10 layer considerably decr...
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| Published in | Japanese Journal of Applied Physics Vol. 36; no. 11R; p. 6746 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
01.11.1997
|
| Online Access | Get full text |
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| Abstract | Co
90
Fe
10
/Cu/Co
90
Fe
10
/Ir
25
Mn
75
spin-valves with a Ta seed layer were prepared by ion beam sputtering. Improvements in magnetoresistive (MR) and magnetic properties were obtained by adding H
2
to Xe sputtering gas. Specifically, the coercivity in the free Co
90
Fe
10
layer considerably decreased as the H
2
flow rate was increased. Furthermore, exchange coupling between the Ir
25
Mn
75
and pinned Co
90
Fe
10
layers became stronger in the preparation under the higher H
2
flow rate. X-ray diffraction, transmission electron microscopy, and secondary ion mass spectroscopy observations suggest that micro-crystallization of each layer is responsible for improving the MR and magnetic properties. |
|---|---|
| AbstractList | Co
90
Fe
10
/Cu/Co
90
Fe
10
/Ir
25
Mn
75
spin-valves with a Ta seed layer were prepared by ion beam sputtering. Improvements in magnetoresistive (MR) and magnetic properties were obtained by adding H
2
to Xe sputtering gas. Specifically, the coercivity in the free Co
90
Fe
10
layer considerably decreased as the H
2
flow rate was increased. Furthermore, exchange coupling between the Ir
25
Mn
75
and pinned Co
90
Fe
10
layers became stronger in the preparation under the higher H
2
flow rate. X-ray diffraction, transmission electron microscopy, and secondary ion mass spectroscopy observations suggest that micro-crystallization of each layer is responsible for improving the MR and magnetic properties. |
| Author | Takahashi, Seiichirou Umemoto, Takashi Maeda, Atsushi Minoru Kume, Minoru Kume Tanuma, Toshio |
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| Cites_doi | 10.1063/1.107591 10.1103/PhysRevB.45.806 10.1109/20.104389 10.1063/1.362009 10.1143/JJAP.35.607 10.1109/20.539130 |
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| Snippet | Co
90
Fe
10
/Cu/Co
90
Fe
10
/Ir
25
Mn
75
spin-valves with a Ta seed layer were prepared by ion beam sputtering. Improvements in magnetoresistive (MR) and... |
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| Title | Physical Properties of CoFe/IrMn Spin-Valves Prepared Using Ion Beam Sputtering with an Xe-H 2 Mixture Gas |
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