Magnetic properties of Co–Fe–Ni films

Jen, S. U.; Chiang, Hai‐Pang; Chung, C.M.; Kao, Ming-Yi

doi:10.1016/s0304-8853(01)00457-7

Cited by 38 publications

(36 citation statements)

References 9 publications

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“…The compositions of alloys were chosen on the basis of the phase diagram reported for bulk, melted Co-Fe-Ni alloys in [4]. We concentrated on Co-rich compositions, because the literature reports indicate that the alloys possess soft magnetic properties.…”

Section: Methodsmentioning

confidence: 99%

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Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

2011

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Co40Fe50Ni10 and Co50Fe45Ni5 ternary alloys were prepared by mechanical alloying method. To check the stability of their structure thermal treatment was applied subsequently. As X-ray diffraction studies proved the final products of milling were the solid solutions with bcc lattice and the average grain sizes ranged of tens of nanometers. After heating of the Co50Fe45Ni5 alloy up to 993 K the mixture of two solid solutions with bcc and fcc lattices was formed. In other cases thermal treatment did not change the type of the crystalline lattice. Mössbauer spectroscopy revealed hyperfine magnetic field distributions which reflected the different possible atomic surroundings of 57 Fe isotopes. Results of the macroscopic magnetic measurements proved that both investigated alloys had relatively good soft magnetic properties.

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Section: Methodsmentioning

confidence: 99%

“…They attract a lot of attention because of possibility of their application in magnetic mass storage devices [1][2][3][4][5]. All available literature reports are focused on such alloys obtained in traditional way i.e.…”

Section: Introductionmentioning

confidence: 99%

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

2011

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“…The aim of this work is to provide an interpretation of the shape of HMF distributions for a series of Co x Fe 1-x-y Ni y alloys prepared by mechanical alloying (MA). As it was proved by several authors [16][17][18][19], the Co x Fe 1-x-y Ni y alloys exhibit soft magnetic properties and can be used as a head core material in magnetic storage devices.…”

Section: Introductionmentioning

confidence: 89%

Local atomic arrangement in mechanosynthesized Co x Fe1−x−y Ni y alloys studied by Mössbauer spectroscopy

Pikula

2014

Appl. Phys. A

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Mechanosynthesized Co x Fe 1-x-y Ni y alloys were examined using X-ray diffraction (XRD) and Möss-bauer spectroscopy. In order to explain the shape of hyperfine magnetic field (HMF) distributions for the alloys, a local environment model based on a multinomial distribution was proposed. The model was in agreement with the XRD data and confirmed that the studied alloys were disordered solid solutions. It was successfully applied to describe the samples with bcc and fcc crystalline lattice type within the relatively broad range of components concentration. The results showed that the change of the crystalline lattice type does not cause an abrupt change of the HMF value. Moreover, a mean number of unpaired spins for the first coordination sphere may be used as a parameter to describe the HMF value experienced by 57 Fe nucleus. Finally, a set of the most probable atomic configurations and their corresponding contributions to the HMF distribution were obtained.

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“…It is known that Co-Fe-Ni ternary alloys, especially as thin layers, are interesting materials because of their good soft magnetic properties causing the application of these alloys as write head core materials in hard-disk drives [1][2][3]. Recently, we have suggested the mechanical alloying (MA) as the potential technology of production of Co-Fe-Ni alloys as soft magnetic powders.…”

Section: Introductionmentioning

confidence: 99%

“…The chemical compositions were chosen on the basis of the phase diagram reported for the Co-rich Co-Fe-Ni bulk alloys obtained by melting [3] and the diagram showing regions of composition with high saturation magnetic flux density for these alloys (Ref. [1] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Mössbauer Study of Mechanosynthesized and Thermally Treated Co-Fe-Ni Alloys

et al. 2008

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Mechanical alloying was used to prepare Co40Fe60, Co60Fe35Ni5, Co 40 Fe 45 Ni 15 , and Co 40 Fe 35 Ni 25 alloys from the elemental powders. As X-ray diffraction studies proved the final products of milling were the solid solutions with bcc or fcc lattice and the average grain size between 20 and 50 nm. After heating of the alloys up to 993 K, the mixtures of two solid solutions with bcc and fcc lattices were formed in the case of Co-Fe-Ni alloys. Thermal treatment did not influence the type of the lattice of Co 40 Fe 60 alloy. The Mössbauer spectroscopy revealed hyperfine magnetic field distribution ranged from 33 to 38 T for Co 40 Fe 60 alloy and from 30 to 37 T for Co-FeNi alloys. In the case of two-phase alloys, distributions were decomposed into two simple Gaussian functions using the numerical fitting. Magnetic measurements allowed to determine the effective magnetic moments and the Curie temperatures of the obtained alloys.

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Magnetic properties of Co–Fe–Ni films

Cited by 38 publications

References 9 publications

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

Local atomic arrangement in mechanosynthesized Co x Fe1−x−y Ni y alloys studied by Mössbauer spectroscopy

Mössbauer Study of Mechanosynthesized and Thermally Treated Co-Fe-Ni Alloys

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Magnetic properties of Co–Fe–Ni films

Cited by 38 publications

References 9 publications

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co40Fe50Ni10and Co50Fe45Ni5Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co40Fe50Ni10and Co50Fe45Ni5Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

Local atomic arrangement in mechanosynthesized Co x Fe1−x−y Ni y alloys studied by Mössbauer spectroscopy

Mössbauer Study of Mechanosynthesized and Thermally Treated Co-Fe-Ni Alloys

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Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated

Hyperfine Interactions and Some Magnetic Properties of Nanocrystalline Co₄₀Fe₅₀Ni₁₀and Co₅₀Fe₄₅Ni₅Alloys Prepared by Mechanical Synthesis and Subsequently Heat Treated