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Magnetoresistance characteristics of (NiFe/Ni/NiFe)/Cu multilayers

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2 Author(s)
Yong-Jin Song ; Dept. of Metall. Eng., Seoul Nat. Univ., South Korea ; Seung-Ki Joo

By inserting two or three layers of NiFe at the interfaces of Ni/Cu multilayers, the magnetoresistance properties of Ni/Cu could be appreciably improved. 50 Oe of saturation magnetic field and 6% of magnetoresistance were obtained in glass/Cu(50 Å)[NiFe(7 Å)Ni(6 Å)NiFe(7 Å)/Cu(20 Å)]20 structured multilayers. 25 Oe of saturation magnetic field and 4.5% of magnetoresistance were obtained in 4° tilt-cut Si(111)/NiFe(50 Å)[NiFe(7 Å)Ni(6 Å)NiFe(7 Å)/Cu(20 Å)]10. Almost negligible hysteresis was shown in both structures, which turned out to be much advantageous in obtaining magnetoresistance signals under ac magnetic field

Published in:

IEEE Transactions on Magnetics  (Volume:32 ,  Issue: 5 )