T Fix et al 2007 Nanotechnology 18 495708 doi:10.1088/0957-4484/18/49/495708
T Fix, M Trassin, R Sayed Hassan, G Schmerber, N Viart, C Mény, S Colis and A Dinia1
Show affiliationsIn spin valve type systems, one ferromagnetic electrode must be magnetically hard to act as a reference layer while the other electrode must be magnetically soft to act as a sensor or storage layer. This magnetic hard–soft architecture can usually be obtained by four different methods: the use of two ferromagnets with different coercive fields (here CoFe2 and Ni80Fe20), the use of an underlayer enhancing the coercive field of one of the two ferromagnets (here Ta and Ru), the use of a ferromagnet coupled to a ferrimagnet or antiferromagnet (here NiO/CoFe2 and CoFe2O4/CoFe2), or the use of an artificial antiferromagnet (here CoFe2/Ru/CoFe2). We show that at least the first and the third methods seem to work with pulsed laser deposition in the thermodynamic conditions used.
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
Issue 49 (12 December 2007)
Received 25 September 2007
Published 8 November 2007
T Fix et al 2007 Nanotechnology 18 495708
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