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Itinerant Ferromagnet RhFe3N: Advanced Synthesis and 57Fe Mossbauer Analysis

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A novel two-step route for the synthesis of RhFe3N is presented that yields the target material with a
significantly improved phase purity. Except from Fe0.5Rh0.5, the absence of other side products is
exemplified on the basis of powder XRD, REM/EDX measurements, and Mo¨ssbauer investigations. As
predicted from density-functional theory calculations, both Rietveld refinement and Mo¨ssbauer analysis
show that the Rh atom within RhFe3N exclusively occupies Wyckoff position 1a but not 3c of the antiperovskite-like structure in space group Pm3 jm, and the rhodium occupation of the 1a site is around
80%, yielding a precise formula of 1a(Rh0.8Fe0.2)3c(Fe3)1bN. The decomposition temperature of the nitride
is estimated from temperature-dependent X-ray measurements to lie around 530 °C.

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Informasi Detail

Judul Seri

Chemistry of Materials

No. Panggil

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Penerbit

Washington, DC : American Chemical Society., 2009

Deskripsi Fisik

Chem. Mater. 2009, 21, 784–788

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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