Physical basis and break down of hyperfine field distribution analysis in fcc Fe-Ni (5–70 at%Fe)

Ping, J. Y.; Rancourt, Denis; Dunlap, R. A.

doi:10.1016/0304-8853(92)90201-x

Cited by 65 publications

(30 citation statements)

References 65 publications

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“…The sextet is attributed to the disordered taenite with Fe 50 Ni 50 composition as was pointed by Abdul et al [32] in mechanical alloying FeNi and the singlet line to the rich fcc iron rich paramagnetic phase [25]. Our results are not far from those found by Jartych et al [17] where /H hf S was equal to 31.5 T for 50 h high-energy ball milled Fe 50 Ni 50 and Ping et al [33] technique and mechanical alloying, respectively. We can also note that for milling times greater than 24 h, the whole amount of iron has reacted with the Ni (absence of pure Fe sextet in the Mo¨ssbauer spectra), this results are in agreement with those found by XRD experiments (see Section 3.1) and elemental mapping by EDX (Section 3.2).…”

Section: Mössbauer Spectroscopycontrasting

confidence: 61%

X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying

Guittoum

Layadi

Bourzami

et al. 2008

Journal of Magnetism and Magnetic Materials

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Section: Mössbauer Spectroscopycontrasting

confidence: 61%

X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying

Guittoum

Layadi

Bourzami

et al. 2008

Journal of Magnetism and Magnetic Materials

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“…The hyperfi ne parameters of sextet m.h.f., isomer shift, and quadrupole splitting are very similar to these typical for -Fe [20]. It is in accordance with the relevant literature that the hyperfi ne parameters of Fe-Ni alloy are not too much different from the pure Fe ones, especially for the small concentration of Ni [21][22][23][24][25].…”

Section: Resultssupporting

confidence: 88%

Magnetic nanowires (Fe, Fe-Co, Fe-Ni) – magnetic moment reorientation in respect of wires composition

2015

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Abstract. Magnetic nanowires of Fe, Fe-Co, and Fe-Ni alloy and layered structure were prepared by electrochemical alternating current (AC) deposition method. The morphology of the nanowires in and without the matrix was studied by energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD), respectively. The wires either show strong dependence on the combination of elements deposition (alloy or layered) or chemical composition (Co or Ni). The magnetic properties of the nanostructures were determined on the basis of Mössbauer spectroscopy (MS).

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“…The prominent peak for the control sample annealed at 600°C is centered on 287 kOe, typical of large-grained, chemically disordered Ni 3 Fe. [24][25][26] We expect the HMFs of the 57 Fe atoms inside the nanocrystals to be similar to those of large-grained disor- dered Ni 3 Fe. The intensity in the HMF distribution below 242 kOe has been shown to originate with 57 Fe atoms in and adjacent to grain boundaries.…”

Section: Hyperfine Magnetic Fieldsmentioning

confidence: 97%

A small angle neutron scattering and Mössbauer spectrometry study of magnetic structures in nanocrystalline Ni3Fe

Frase

Fultz

Spooner

et al. 1999

Journal of Applied Physics

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Results are reported from small angle neutron scattering and Mössbauer spectrometry measurements on nanocrystalline Ni 3 Fe. The nanocrystalline materials were prepared by mechanical attrition and studied in the as-milled state, after annealing at 265°C to relieve internal stress, and after annealing 600°C to prepare a control sample comprising large crystals. The small angle neutron scattering ͑SANS͒ measurements were performed for a range of applied magnetic fields. Small differences were found in how the different samples reached magnetic saturation. From the SANS data obtained at magnetic saturation, we found little difference in the nuclear scattering of the as-milled material and the material annealed at 265°C. Reductions in nuclear scattering and magnetic scattering were observed for the control sample, and this was interpreted as grain growth. The material annealed at 265°C also showed a reduction in magnetic SANS compared to the as-milled material. This was interpreted as an increase in magnetic moments of atoms at the grain boundaries after a low temperature annealing. Both Mössbauer spectroscopy and small angle neutron scattering showed an increase in the grain boundary magnetic moments after the 265°C annealing ͑0.2 and 0.4 B /atom, respectively͒, even though there was little change in the grain boundary atomic density.

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Physical basis and break down of hyperfine field distribution analysis in fcc Fe-Ni (5–70 at%Fe)

Cited by 65 publications

References 65 publications

X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying

X-ray diffraction, microstructure, Mössbauer and magnetization studies of nanostructured Fe50Ni50 alloy prepared by mechanical alloying

Magnetic nanowires (Fe, Fe-Co, Fe-Ni) – magnetic moment reorientation in respect of wires composition

A small angle neutron scattering and Mössbauer spectrometry study of magnetic structures in nanocrystalline Ni3Fe

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