Antiferromagnetism of fcc iron films

Halbauer, R.; Gonser, U.

doi:10.1016/0304-8853(83)90454-7

Cited by 89 publications

(8 citation statements)

References 6 publications

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“…The third transient contribution is a single line with an isomer shift of -0.09 mm/s characteristic of the fcc-Fe phase [19]. The latter phase was not detected by X-ray diffraction, likely for similar reasons.…”

Section: Journal Of Metastable and Nanocrystalline Vol 18 Issn 1422mentioning

confidence: 93%

The Influence of Pre-Milling on the Microstructural Evolution During Mechanical Alloying of a Fe50Cu50 Alloy.

Trindade

2003

JMNM

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Fe 50 Cu 50 solid solutions have been obtained by two different mechanical alloying routes, i.e. from Fe-Cu powders with and without premilling. These two alloying processes were studied and compared at two rotation speeds of a planetary ball-mill, namely 200 rpm and 300 rpm. The microstructural evolution of the ball-milled powders as a function of milling time was monitored using electron probe microanalysis, X-ray diffraction, scanning electron microscopy and Mössbauer spectroscopy. In both processing routes, a broad distribution of different local environments of the iron atoms was observed in the Mössbauer spectra of the fcc-FeCu phase. Mössbauer spectra show further that a fcc non magnetic Fe-rich phase is formed transiently besides the bcc-Fe phase. The Fe-Cu reactions are slowed down when premilled powders are used as starting powders but similar fcc solid solutions are formed during milling. As expected, the mechanical alloying process is faster at 300 rpm but the final results are similar using 200 rpm or 300 rpm.

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Section: Journal Of Metastable and Nanocrystalline Vol 18 Issn 1422mentioning

confidence: 93%

The Influence of Pre-Milling on the Microstructural Evolution During Mechanical Alloying of a Fe50Cu50 Alloy.

Trindade

2003

JMNM

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“…It has been experimentally established that small iron particles precipitating from a oversaturated solution in copper [121][122][123] or fcc Fe thin films epitaxially grown-up on a surface of Cu single crystal [124][125][126][127] were paramagnetic (PM) at room temperature and the transition to an AF state occurred below the Neel' point, that is, about 65-67 K. The AF fcc Fe possessed a hyperfine field of ≈2.0 T and the magnetic moment per atom of ≈0.7 μ B .…”

Section: 47mentioning

confidence: 99%

Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys

Petrov

Shafranovsky

2012

International Journal of Inorganic Chemistry

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Structure and magnetic properties of aerosol nanoparticles of Fe and its alloys (FeMn, FeNi, FeNiMn, FePt, FeCr, FeCo, and FeCu) have been reviewed. It has been shown that, compared to a bulk material, the particles have a number of specific features being of much fundamental and applied interest. The effect of both a quenched high-temperature Fe modification and its oxides on the structure and magnetism of nanoparticles has been considered in detail. Particular attention has been paid to the recently observed fine structure in the hyperfine field distribution at iron nuclei in Mössbauer spectra for pure iron and its alloys both as a bulk and aerosol nanoparticles. This phenomenon makes it possible to reveal very weak magnetic interactions in the system under study. The plausible origin of these magnetic interactions has been also discussed.

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“…This can be explained by the very small amount and the small crystallite size of this residual phase which may at least partly come from a contamination by milling tools. The third contribution is a single line with an IS= -0.09 mm/s characteristic of the fcc-Fe phase [11]. This phase was not detected by XRD, likely for similar reasons.…”

Section: Advanced Materials Forum Imentioning

confidence: 91%

Mechanical Alloying of Fe-Cu Alloys from As-Received and Premilled Elemental Powder Mixtures

Lucas

Trindade

Costa

et al. 2002

KEM

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We have investigated the effect of premilling elemental powders of Fe and Cu on the mixture mechanism of a Fe 50 Cu 50 alloy. The alloying process was compared and studied using electron probe microanalysis, X-ray diffraction, scanning electron microscopy and Mössbauer spectroscopy. In both processing routes (with and without premilling), a broad distribution of different local environments of the iron atoms was observed in the Mössbauer spectra of the fcc-FeCu phase. Mössbauer spectra show further that a fcc non magnetic Fe-rich phase is formed transiently besides the bcc-Fe phase. The reactions are slowed down when premilled powders are used as starting powders but similar fcc solid solutions are formed after 16 h and 32h in our milling conditions when as-received and premilled powders are used respectively as starting powders.

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Antiferromagnetism of fcc iron films

Cited by 89 publications

References 6 publications

The Influence of Pre-Milling on the Microstructural Evolution During Mechanical Alloying of a Fe<sub>50</sub>Cu<sub>50</sub> Alloy.

The Influence of Pre-Milling on the Microstructural Evolution During Mechanical Alloying of a Fe<sub>50</sub>Cu<sub>50</sub> Alloy.

Structure and Magnetic Properties of Aerosol Nanoparticles of Fe and Its Alloys

Mechanical Alloying of Fe-Cu Alloys from As-Received and Premilled Elemental Powder Mixtures

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