The Influence of Structural and Phase State on the Magnetoresistive Properties of Film Systems Based on FexNi100 – x and Cu

Author(s) Yu.O. Shkurdoda,
Affiliations

Sumy State University, 2, Rymskyі-Korsakov Str., 40007 Sumy, Ukraine

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Issue Volume 9, Year 2017, Number 4
Dates Received 10 March 2017; revised manuscript received 25 July 2017; published online 27 July 2017
Citation Yu.O. Shkurdoda, J. Nano- Electron. Phys. 9 No 4, 04008 (2017)
DOI 10.21272/jnep.9(4).04008
PACS Number(s) 68.35.bj, 68.60.Bs, 75.47.De
Key words Multilayer film system, Crystal structure (7) , Phase state (2) , Anisotropic magnetoresistance, Spin-dependent scattering of electrons.
Annotation The structural-phase composition and magnetoresistive properties of as-deposited and annealed at 400, 550 and 700 K temperatures of the layered film systems based on ferromagnetic alloy (FexNi100 – x) (F – layers) and Cu (N – layer) obtained layer by layer condensation method were investigated. A phase state of the film samples (dF = 10-50 nm and dN = 5-20 nm, х = 20-40 %) is fcc-Ni3Fe (а = 0,355-0,358 nm) and fcc-Cu phases. The samples with Ni concentration in magnetic layers х = 50-60 % have a two-phase structure – fcc-NiFe (а = 0,358-0,362 nm) + fcc-Cu. After annealing at 700 K in these systems are formed solid solutions (Ni3Fe, Cu) and (NiFe, Cu), respectively. For the as-deposited and annealed at 700 K samples with х > 60 % the phase state is bcc-(Fe-Ni) + fcc-Cu. In the thickness layers range dN = 5-15 nm and dF = 25-40 nm (cNi = 90 %) for three-layers samples realized spin-dependent scattering of electrons was shown.

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