Synthesis and characterization of FeRh nanoparticles

Diana Ciuculescu; Catherine Amiens; Marc Respaud; Pierre Lecante; Andrea Falqui; Bruno Chaudret

doi:10.1142/S0217984907013857

Synthesis and characterization of FeRh nanoparticles

Diana Ciuculescu^*, Catherine Amiens, Marc Respaud, Pierre Lecante, Andrea Falqui, Bruno Chaudret

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Fe_0.8Rh_0.2 nanoparticles with an average size of 1.8 nm have been synthesized by simultaneous decomposition of stoichiometric quantities of Fe[N(Si(CH₃)₃)₂]₂ and Rh(C₃H₅)₃ in mild conditions of temperature and hydrogen pressure, using hexadecylamine as stabilizer. These nanoparticles display a magnetization of 1.13 μ_B per iron atom, which is more than two times smaller than the bulk value with the same composition. No surface contamination with iron oxides was detected by Mössbauer spectroscopy. Superconducting quantum interference device and Mössbauer spectroscopy investigations reveal that the origin of this variation may be a core-shell Rh/Fe chemical arrangement.

Original language	English (US)
Pages (from-to)	1153-1159
Number of pages	7
Journal	Modern Physics Letters B
Volume	21
Issue number	18
DOIs	https://doi.org/10.1142/S0217984907013857
State	Published - Aug 10 2007
Externally published	Yes

Keywords

Core-shell segregation
FeRh
Nanoparticles

ASJC Scopus subject areas

Statistical and Nonlinear Physics
Condensed Matter Physics

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10.1142/S0217984907013857

Cite this

@article{6c2b5f6d7eb7401cb4f2ca26b0cf9e38,

title = "Synthesis and characterization of FeRh nanoparticles",

abstract = "Fe0.8Rh0.2 nanoparticles with an average size of 1.8 nm have been synthesized by simultaneous decomposition of stoichiometric quantities of Fe[N(Si(CH3)3)2]2 and Rh(C3H5)3 in mild conditions of temperature and hydrogen pressure, using hexadecylamine as stabilizer. These nanoparticles display a magnetization of 1.13 μB per iron atom, which is more than two times smaller than the bulk value with the same composition. No surface contamination with iron oxides was detected by M{\"o}ssbauer spectroscopy. Superconducting quantum interference device and M{\"o}ssbauer spectroscopy investigations reveal that the origin of this variation may be a core-shell Rh/Fe chemical arrangement.",

keywords = "Core-shell segregation, FeRh, Nanoparticles",

author = "Diana Ciuculescu and Catherine Amiens and Marc Respaud and Pierre Lecante and Andrea Falqui and Bruno Chaudret",

note = "Funding Information: This work was supported by the European Community Marie Curie Research Training Network — Syntorbmag — MRTN-CT-2004-005567. The authors thank Alain Mari and J.-F. Meunier for recording magnetic and M{\"o}ssbauer measurements respectively, and Vincent Colliere for technical assistance in TEM imaging.",

year = "2007",

month = aug,

day = "10",

doi = "10.1142/S0217984907013857",

language = "English (US)",

volume = "21",

pages = "1153--1159",

journal = "Modern Physics Letters B",

issn = "0217-9849",

publisher = "World Scientific Publishing Co. Pte Ltd",

number = "18",

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TY - JOUR

T1 - Synthesis and characterization of FeRh nanoparticles

AU - Ciuculescu, Diana

AU - Amiens, Catherine

AU - Respaud, Marc

AU - Lecante, Pierre

AU - Falqui, Andrea

AU - Chaudret, Bruno

N1 - Funding Information: This work was supported by the European Community Marie Curie Research Training Network — Syntorbmag — MRTN-CT-2004-005567. The authors thank Alain Mari and J.-F. Meunier for recording magnetic and Mössbauer measurements respectively, and Vincent Colliere for technical assistance in TEM imaging.

PY - 2007/8/10

Y1 - 2007/8/10

N2 - Fe0.8Rh0.2 nanoparticles with an average size of 1.8 nm have been synthesized by simultaneous decomposition of stoichiometric quantities of Fe[N(Si(CH3)3)2]2 and Rh(C3H5)3 in mild conditions of temperature and hydrogen pressure, using hexadecylamine as stabilizer. These nanoparticles display a magnetization of 1.13 μB per iron atom, which is more than two times smaller than the bulk value with the same composition. No surface contamination with iron oxides was detected by Mössbauer spectroscopy. Superconducting quantum interference device and Mössbauer spectroscopy investigations reveal that the origin of this variation may be a core-shell Rh/Fe chemical arrangement.

AB - Fe0.8Rh0.2 nanoparticles with an average size of 1.8 nm have been synthesized by simultaneous decomposition of stoichiometric quantities of Fe[N(Si(CH3)3)2]2 and Rh(C3H5)3 in mild conditions of temperature and hydrogen pressure, using hexadecylamine as stabilizer. These nanoparticles display a magnetization of 1.13 μB per iron atom, which is more than two times smaller than the bulk value with the same composition. No surface contamination with iron oxides was detected by Mössbauer spectroscopy. Superconducting quantum interference device and Mössbauer spectroscopy investigations reveal that the origin of this variation may be a core-shell Rh/Fe chemical arrangement.

KW - Core-shell segregation

KW - FeRh

KW - Nanoparticles

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U2 - 10.1142/S0217984907013857

DO - 10.1142/S0217984907013857

M3 - Article

AN - SCOPUS:34548042743

SN - 0217-9849

VL - 21

SP - 1153

EP - 1159

JO - Modern Physics Letters B

JF - Modern Physics Letters B

IS - 18

ER -

Synthesis and characterization of FeRh nanoparticles

Abstract

Keywords

ASJC Scopus subject areas

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