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Interlayer couplings and magnetoresistance effects of Fe/Cr/Fe/Ni-Fe/NiO sandwiches |
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| Authors: | R NAKATANI K HOSHINO Y SUGITA H HOSHIYA S NOGUCHI |
| Affiliation: | (1) Central Research Laboratory, Hitachi Ltd., Kokubunji Tokyo 185, Japan;(2) Central Research Laboratory, Hitachi Ltd., Hitachi Research Laboratory, Hitachi Ltd., Hitachi Ibaraki 319-12, Japan;(3) Magnetic and Electronic Material Research Laboratory, Hitachi Metals Ltd., Kumagaya Saitama 360, Japan |
| Abstract: | Interlayer coupling between Fe layers and magnetoresistance effect have been investigated in Fe/Cr/Fe/Ni-Fe/NiO sandwiches. The interlayer coupling between two Fe layers oscillates as the thickness of Cr layer changes. The strongest antiferromagnetic coupling is observed when the thickness of the Cr layer is 1.2 nm. The highest magnetoresistance ratio due to spin-dependent scattering is only 0.13%. The low magnetoresistance ratio is thought to be caused by high resistivity of the Cr layer. This revised version was published online in November 2006 with corrections to the Cover Date. |
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