Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications
The tri-metallic amorphous alloy Co17Fe54Ni29 is highly desirable for electronics and magnetic sensing applications, owing to its unique properties that stem from disordered atomic configurations. Due to the material’s intrinsic complexity, achieving uniform thin films and conducting comp...
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2025-01-01
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| author | S. Vimala Gayathri D. Subbulekshmi |
| author_facet | S. Vimala Gayathri D. Subbulekshmi |
| author_sort | S. Vimala Gayathri |
| collection | DOAJ |
| description | The tri-metallic amorphous alloy Co17Fe54Ni29 is highly desirable for electronics and magnetic sensing applications, owing to its unique properties that stem from disordered atomic configurations. Due to the material’s intrinsic complexity, achieving uniform thin films and conducting comprehensive analyses has been challenging. The objective of this study is to gain a comprehensive understanding of Co17Fe54Ni29 by optimizing PVD deposition parameters and characterizing thin films sputtered onto glass substrates. Characterization techniques include FTIR and UV–Vis spectroscopy (for chemical and optical analysis), profilometry (to assess surface features), XRD (to confirm the amorphous structure), XPS (to determine elemental composition and bonding states), and SEM (to analyse surface morphology and particle size). By varying RF power from 100W to 150W, enhanced chemical interaction between metal species and oxygen was observed, accompanied by an increase in particle size, film thickness, and surface roughness. Surface wettability also changed, with the film transitioning from hydrophilic to hydrophobic behavior as contact angles exceeded 90°. The films exhibited reduced absorbance and improved optical transmittance, indicating potential for optoelectronic applications. This study provides important insights into how sputtering parameters influence film structure and properties. VSM analysis revealed that the film deposited at 130 W exhibited the most favorable soft magnetic properties (M<inline-formula> <tex-math notation="LaTeX">${}_{\mathbf {s}} = 7.02$ </tex-math></inline-formula> emu/g, H<inline-formula> <tex-math notation="LaTeX">${}_{\mathbf {c}} = 9.75$ </tex-math></inline-formula> Oe), making it the optimal choice for magnetic sensor applications. |
| format | Article |
| id | doaj-art-7ade1f35d9c04e4a806b44520f01abd5 |
| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
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| spelling | doaj-art-7ade1f35d9c04e4a806b44520f01abd52025-08-25T23:12:15ZengIEEEIEEE Access2169-35362025-01-011314296114297910.1109/ACCESS.2025.359735311121827Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing ApplicationsS. Vimala Gayathri0https://orcid.org/0009-0006-8227-7880D. Subbulekshmi1https://orcid.org/0000-0002-6172-5238School of Electrical Engineering, Vellore Institute of Technology, Chennai, IndiaSchool of Electrical Engineering, Vellore Institute of Technology, Chennai, IndiaThe tri-metallic amorphous alloy Co17Fe54Ni29 is highly desirable for electronics and magnetic sensing applications, owing to its unique properties that stem from disordered atomic configurations. Due to the material’s intrinsic complexity, achieving uniform thin films and conducting comprehensive analyses has been challenging. The objective of this study is to gain a comprehensive understanding of Co17Fe54Ni29 by optimizing PVD deposition parameters and characterizing thin films sputtered onto glass substrates. Characterization techniques include FTIR and UV–Vis spectroscopy (for chemical and optical analysis), profilometry (to assess surface features), XRD (to confirm the amorphous structure), XPS (to determine elemental composition and bonding states), and SEM (to analyse surface morphology and particle size). By varying RF power from 100W to 150W, enhanced chemical interaction between metal species and oxygen was observed, accompanied by an increase in particle size, film thickness, and surface roughness. Surface wettability also changed, with the film transitioning from hydrophilic to hydrophobic behavior as contact angles exceeded 90°. The films exhibited reduced absorbance and improved optical transmittance, indicating potential for optoelectronic applications. This study provides important insights into how sputtering parameters influence film structure and properties. VSM analysis revealed that the film deposited at 130 W exhibited the most favorable soft magnetic properties (M<inline-formula> <tex-math notation="LaTeX">${}_{\mathbf {s}} = 7.02$ </tex-math></inline-formula> emu/g, H<inline-formula> <tex-math notation="LaTeX">${}_{\mathbf {c}} = 9.75$ </tex-math></inline-formula> Oe), making it the optimal choice for magnetic sensor applications.https://ieeexplore.ieee.org/document/11121827/Amorphous alloyschemical propertiesmorphological analysisoptical propertiesmagnetic propertiesstructural analysis |
| spellingShingle | S. Vimala Gayathri D. Subbulekshmi Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications IEEE Access Amorphous alloys chemical properties morphological analysis optical properties magnetic properties structural analysis |
| title | Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications |
| title_full | Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications |
| title_fullStr | Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications |
| title_full_unstemmed | Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications |
| title_short | Fabrication and Characterization of Physical Vapour Deposition Derived Amorphous Co₁₇Fe₅₄Ni₂₉ Thin Film for Magnetic Sensing Applications |
| title_sort | fabrication and characterization of physical vapour deposition derived amorphous co x2081 x2087 fe x2085 x2084 ni x2082 x2089 thin film for magnetic sensing applications |
| topic | Amorphous alloys chemical properties morphological analysis optical properties magnetic properties structural analysis |
| url | https://ieeexplore.ieee.org/document/11121827/ |
| work_keys_str_mv | AT svimalagayathri fabricationandcharacterizationofphysicalvapourdepositionderivedamorphouscox2081x2087fex2085x2084nix2082x2089thinfilmformagneticsensingapplications AT dsubbulekshmi fabricationandcharacterizationofphysicalvapourdepositionderivedamorphouscox2081x2087fex2085x2084nix2082x2089thinfilmformagneticsensingapplications |