Differences observed in properties of ternary NiCoFe films electrodeposited at low and high pH

Autor: Ozen Demirbas, Mursel Alper, Hakan Kockar, Hilal Kuru
Přispěvatelé: Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü., Alper, Mürsel, AAG-8795-2021
Rok vydání: 2012
Předmět:
Materials science
Cobalt-nickel-iron
Magnetoresistance
X ray diffraction
Scanning electron microscope
Magnetometer
Feconi thin-films
Film plane
Analytical chemistry
Density
Electrolyte
Engineering
electrical & electronic
Conife films
law.invention
Mems
Electrolytes
Engineering
Electrodeposition
law
Magnetic characteristic
Vibrating sample magnetometer
Physics
condensed matter
Texture (crystalline)
Electrical and Electronic Engineering
Dependence
Ni alloys
Physics
applied
Magneto transport properties
Magnetoresistance properties
Co-Fe films
Physics
Hexagonal closed-packed structures
Cobalt
Microstructural changes
Condensed Matter Physics
Atomic and Molecular Physics
and Optics
Materials science
multidisciplinary
Electronic
Optical and Magnetic Materials
Magnetic anisotropy
Iron
Cobalt Alloys
Magnetic Properties
Ternary operation
Scanning electron microscopy
In-plane magnetic anisotropy
Magnetic-properties
Electrical-resistivity
Magnetic and magnetotransport properties
Zdroj: Journal of Materials Science: Materials in Electronics. 24:1961-1965
ISSN: 1573-482X
0957-4522
DOI: 10.1007/s10854-012-1041-x
Popis: Ternary NiCoFe films were potentiostatically electrodeposited from the electrolytes with low (3.0) and high (3.6) pH levels, and differences in their compositional, structural, magnetic and magnetoresistance properties were studied. The compositional analysis demonstrated that the Ni content in the films decreased, and Co and Fe content increased while electrolyte pH was changed from low to high level. The structural analysis of the films was carried out using the X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The XRD data revealed that the films have a strong (111) texture of the face-centred cubic (fcc) structure at low pH, while for the films at high pH a mixture of dominantly fcc and hexagonal closed packed structure was observed. The SEM studies showed that films grown at low pH level had comparatively larger grains than those at high pH. The magnetic characteristics studied by a vibrating sample magnetometer and magnetotransport properties were seen to be changed by the electrolyte pH. However, all films have in-plane magnetic anisotropy. The differences observed in the magnetic and magnetotransport properties were attributed to the microstructural changes caused by the electrolyte pH. Turkiye Cumhuriyeti Kalkınma Bakanlığı (2005K120170) Balıkesir Üniversitesi BAP (2001/02)
Databáze: OpenAIRE
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