Size and heat treatment effects in magnetoresistive properties of Ag-added Ni80Fe20 film systems

Size and heat treatment effects in magnetoresistive properties of Ag-added Ni 80 Fe 20 film systems prepared by the method of electron-beam co-evaporation at room temperature were investigated. For all as-deposited samples, the isotropic magnetoresistance, which value increase with the growth of sam...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2021-05, Vol.127 (5), Article 306
Main Authors: Pazukha, I. M., Shuliarenko, D. O., Pylypenko, O. V., Vorobiov, S. I., Tkáč, V., Čižmár, E.
Format: Article
Language:English
Subjects:
Annealing
Applied physics
Characterization and Evaluation of Materials
Condensed Matter Physics
Electron beams
Ferromagnetic materials
Ferrous alloys
Heat treatment
High temperature
Machines
Magnetic alloys
Magnetic properties
Magnetoresistance
Magnetoresistivity
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Physics
Physics and Astronomy
Processes
Room temperature
Surfaces and Interfaces
Thickness
Thin Films
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Summary:Size and heat treatment effects in magnetoresistive properties of Ag-added Ni 80 Fe 20 film systems prepared by the method of electron-beam co-evaporation at room temperature were investigated. For all as-deposited samples, the isotropic magnetoresistance, which value increase with the growth of sample thickness within the range from 20 to 100 nm, was observed. The maximum magnetoresistance was observed for Ag-added Ni 80 Fe 20 film systems with a total thickness of 60 nm annealed to 500 K. The high-temperature annealing to 700 K leads to a decrease in the value of magnetoresistance and appearing of the anisotropic magnetoresistive effect. Magnetic investigations of thin films allow indicating that nanosized permalloy grains have ferromagnetic nature and conditional the isotropic behavior of magnetoresistance in as-deposited samples.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-021-04465-1