Quantitative understanding of thermal stability of α′′-Fe16N2Electronic supplementary information (ESI) available: Details of experiments; XRD patterns of the pristine α′′-Fe16N2 nanoparticles and an empty borosilicate capillary (Fig. S1); typical examples of the Rietveld analyses (Fig. S2); XRD patterns of the samples heat-treated at 473, 493, 503 and 513 K under N2 (Fig. S3); plots of wFe, wFe4N, and wamorvs. t/t1/2 (Fig. S4); experimental data collected under an Ar atmosphere (Fig. S5 and S6)
The thermal stability of α′′-Fe 16 N 2 , which attracts much interest because of its superior magnetic properties featuring a large magnetocrystalline anisotropy ( K u ∼ 1 × 10 7 erg cm −3 ) and a large saturation magnetization ( M s ∼ 234 emu g −1 ), though unfortunately thermally unstable, has bee...
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Zusammenfassung: | The thermal stability of α′′-Fe
16
N
2
, which attracts much interest because of its superior magnetic properties featuring a large magnetocrystalline anisotropy (
K
u
∼ 1 × 10
7
erg cm
−3
) and a large saturation magnetization (
M
s
∼ 234 emu g
−1
), though unfortunately thermally unstable, has been
quantitatively
studied.
The thermal stability of α′′-Fe
16
N
2
, which has a large magnetocrystalline anisotropy (
K
u
∼ 1 × 10
7
erg cm
−3
) and a large saturation magnetization (
M
s
∼ 234 emu g
−1
), though unfortunately thermally unstable, has been
quantitatively
studied. |
---|---|
ISSN: | 1359-7345 1364-548X |
DOI: | 10.1039/c3cc43590c |