CobaltMaghrebV1, PascalFrancis, Curation, bibRecord, 000174

Magnetic properties of Cofe1.9RE0.1O4 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol

Identifieur interne : 000174 ( PascalFrancis/Curation ); précédent : 000173; suivant : 000175

Magnetic properties of Cofe1.9RE0.1O4 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol

Auteurs : L. Ben Tahar [Tunisie] ; M. Artus [France] ; S. Ammar [France] ; L. S. Smiri [Tunisie] ; F. Herbst [France] ; M.-J. Vaulay [France] ; V. Richard [France] ; J.-M. Greneche [France] ; F. Villain [France] ; F. Fievet [France]

Source :

Journal of magnetism and magnetic materials [ 0304-8853 ] ; 2008.

RBID : Pascal:08-0518493

Descripteurs français

Pascal (Inist)
- Propriété magnétique, Composition chimique, Diffraction RX, Microscopie électronique transmission, Spectre perte énergie électron, Effet Mössbauer, Spectre absorption RX, Substitution ion, Microstructure, Fer Cobalt Lanthanide Oxyde Mixte, Nanoparticule, Ferrites, Particule magnétique.

English descriptors

KwdEn :
- Chemical composition, Electron energy loss spectra, Ferrites, Ion substitution, Iron Cobalt Rare earths Oxides Mixed, Magnetic particles, Magnetic properties, Microstructure, Moessbauer effect, Nanoparticles, Transmission electron microscopy, X-ray absorption spectra, XRD.

Abstract

Highly crystalline Cofe_1.9RE_0.1O₄ ferrite nanoparticles, where RE = La, Ce, Nd, Sm, Eu, Gd, Tb, and Ho, have been synthesized by forced hydrolysis in polyol. X-ray diffraction (XRD), transmission electron microscopy (TEM), electron energy-loss spectroscopy (EELS), ⁵⁷ Fe Mossbauer spectrometry, Co K-edge X-ray absorption spectroscopy and magnetic measurements using a SQUID magnetometer were employed to investigate the effect of the substitution RE³⁺ ions for Fe³⁺ ones on the structure, the microstructure, the chemical homogeneity, and the magnetic properties of the cobalt ferrite system. All the produced particles are superparamagnetic at room temperature. Nevertheless, the substitution causes reduction of the blocking temperature which is mainly ascribed to partial cation exchange among the spinel-like sublattices of CoFe₂O₄ induced by the insertion of the relatively large RE³⁺ ions. The low-temperature saturation magnetization and coercivity appear to be greatly affected by the nature of RE³⁺ ions-maxima values were found for Gd³⁺ and Eu³⁺, respectively.

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A08	`01`	`1`	`ENG`	`@1 Magnetic properties of Cofe_1.9RE_0.1O₄ nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol`
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A14	`02`			`@1 ITODYS, Université Paris Diderot, UMR-CNRS 7086, 2 Place Jussieu @2 75251 Paris @3 FRA @Z 2 aut. @Z 3 aut. @Z 5 aut. @Z 6 aut. @Z 10 aut.`
A14	`03`			`@1 LMPTM, Institut Galilée, UPR-CNRS 9001, 99 Avenue Jean-Baptiste Clément @2 93430 Villetaneuse @3 FRA @Z 7 aut.`
A14	`04`			`@1 LPEC, Université du Maine, UMR-CNRS 6087, Avenue Olivier Messiaen @2 72085 Le Mans @3 FRA @Z 8 aut.`
A14	`05`			`@1 LCI2M, Université Paris 6. UMR-CNRS 7071, 4 Place Jussieu @2 75251 Paris @3 FRA @Z 9 aut.`
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A64	`01`	`1`		`@0 Journal of magnetism and magnetic materials`
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C01	`01`		`ENG`	@0 Highly crystalline Cofe_1.9RE_0.1O₄ ferrite nanoparticles, where RE = La, Ce, Nd, Sm, Eu, Gd, Tb, and Ho, have been synthesized by forced hydrolysis in polyol. X-ray diffraction (XRD), transmission electron microscopy (TEM), electron energy-loss spectroscopy (EELS), ⁵⁷ Fe Mossbauer spectrometry, Co K-edge X-ray absorption spectroscopy and magnetic measurements using a SQUID magnetometer were employed to investigate the effect of the substitution RE³⁺ ions for Fe³⁺ ones on the structure, the microstructure, the chemical homogeneity, and the magnetic properties of the cobalt ferrite system. All the produced particles are superparamagnetic at room temperature. Nevertheless, the substitution causes reduction of the blocking temperature which is mainly ascribed to partial cation exchange among the spinel-like sublattices of CoFe₂O₄ induced by the insertion of the relatively large RE³⁺ ions. The low-temperature saturation magnetization and coercivity appear to be greatly affected by the nature of RE³⁺ ions-maxima values were found for Gd³⁺ and Eu³⁺, respectively.
C02	`01`	`3`		`@0 001B70E75`
C03	`01`	`3`	`FRE`	`@0 Propriété magnétique @5 02`
C03	`01`	`3`	`ENG`	`@0 Magnetic properties @5 02`
C03	`02`	`3`	`FRE`	`@0 Composition chimique @5 03`
C03	`02`	`3`	`ENG`	`@0 Chemical composition @5 03`
C03	`03`	`3`	`FRE`	`@0 Diffraction RX @5 04`
C03	`03`	`3`	`ENG`	`@0 XRD @5 04`
C03	`04`	`3`	`FRE`	`@0 Microscopie électronique transmission @5 05`
C03	`04`	`3`	`ENG`	`@0 Transmission electron microscopy @5 05`
C03	`05`	`3`	`FRE`	`@0 Spectre perte énergie électron @5 06`
C03	`05`	`3`	`ENG`	`@0 Electron energy loss spectra @5 06`
C03	`06`	`3`	`FRE`	`@0 Effet Mössbauer @5 07`
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C03	`08`	`X`	`FRE`	`@0 Substitution ion @5 09`
C03	`08`	`X`	`ENG`	`@0 Ion substitution @5 09`
C03	`08`	`X`	`SPA`	`@0 Sustitución ión @5 09`
C03	`09`	`3`	`FRE`	`@0 Microstructure @5 10`
C03	`09`	`3`	`ENG`	`@0 Microstructure @5 10`
C03	`10`	`X`	`FRE`	`@0 Fer Cobalt Lanthanide Oxyde Mixte @2 NC @2 NA @5 11`
C03	`10`	`X`	`ENG`	`@0 Iron Cobalt Rare earths Oxides Mixed @2 NC @2 NA @5 11`
C03	`10`	`X`	`SPA`	`@0 Mixto @2 NC @2 NA @5 11`
C03	`11`	`3`	`FRE`	`@0 Nanoparticule @5 15`
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C03	`13`	`3`	`ENG`	`@0 Magnetic particles @5 20`
N21				`@1 343`

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Pascal:08-0518493

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Magnetic properties of Cofe<sub>1.9</sub>
RE<sub>0.1</sub>
O<sub>4</sub>
 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol</title>
<author><name sortKey="Ben Tahar, L" sort="Ben Tahar, L" uniqKey="Ben Tahar L" first="L." last="Ben Tahar">L. Ben Tahar</name>
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<author><name sortKey="Ammar, S" sort="Ammar, S" uniqKey="Ammar S" first="S." last="Ammar">S. Ammar</name>
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<author><name sortKey="Smiri, L S" sort="Smiri, L S" uniqKey="Smiri L" first="L. S." last="Smiri">L. S. Smiri</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Unité de Recherche 99/UR12-30, Faculté des Sciences de Bizerte</s1>
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<author><name sortKey="Herbst, F" sort="Herbst, F" uniqKey="Herbst F" first="F." last="Herbst">F. Herbst</name>
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<author><name sortKey="Vaulay, M J" sort="Vaulay, M J" uniqKey="Vaulay M" first="M.-J." last="Vaulay">M.-J. Vaulay</name>
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<author><name sortKey="Richard, V" sort="Richard, V" uniqKey="Richard V" first="V." last="Richard">V. Richard</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>LMPTM, Institut Galilée, UPR-CNRS 9001, 99 Avenue Jean-Baptiste Clément</s1>
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<author><name sortKey="Greneche, J M" sort="Greneche, J M" uniqKey="Greneche J" first="J.-M." last="Greneche">J.-M. Greneche</name>
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<author><name sortKey="Villain, F" sort="Villain, F" uniqKey="Villain F" first="F." last="Villain">F. Villain</name>
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<author><name sortKey="Fievet, F" sort="Fievet, F" uniqKey="Fievet F" first="F." last="Fievet">F. Fievet</name>
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<series><title level="j" type="main">Journal of magnetism and magnetic materials</title>
<title level="j" type="abbreviated">J. magn. magn. mater.</title>
<idno type="ISSN">0304-8853</idno>
<imprint><date when="2008">2008</date>
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<seriesStmt><title level="j" type="main">Journal of magnetism and magnetic materials</title>
<title level="j" type="abbreviated">J. magn. magn. mater.</title>
<idno type="ISSN">0304-8853</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chemical composition</term>
<term>Electron energy loss spectra</term>
<term>Ferrites</term>
<term>Ion substitution</term>
<term>Iron Cobalt Rare earths Oxides Mixed</term>
<term>Magnetic particles</term>
<term>Magnetic properties</term>
<term>Microstructure</term>
<term>Moessbauer effect</term>
<term>Nanoparticles</term>
<term>Transmission electron microscopy</term>
<term>X-ray absorption spectra</term>
<term>XRD</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Propriété magnétique</term>
<term>Composition chimique</term>
<term>Diffraction RX</term>
<term>Microscopie électronique transmission</term>
<term>Spectre perte énergie électron</term>
<term>Effet Mössbauer</term>
<term>Spectre absorption RX</term>
<term>Substitution ion</term>
<term>Microstructure</term>
<term>Fer Cobalt Lanthanide Oxyde Mixte</term>
<term>Nanoparticule</term>
<term>Ferrites</term>
<term>Particule magnétique</term>
</keywords>
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</teiHeader>
<front><div type="abstract" xml:lang="en">Highly crystalline Cofe<sub>1.9</sub>
RE<sub>0.1</sub>
O<sub>4</sub>
 ferrite nanoparticles, where RE = La, Ce, Nd, Sm, Eu, Gd, Tb, and Ho, have been synthesized by forced hydrolysis in polyol. X-ray diffraction (XRD), transmission electron microscopy (TEM), electron energy-loss spectroscopy (EELS), <sup>57</sup>
 Fe Mossbauer spectrometry, Co K-edge X-ray absorption spectroscopy and magnetic measurements using a SQUID magnetometer were employed to investigate the effect of the substitution RE<sup>3+</sup>
 ions for Fe<sup>3+</sup>
 ones on the structure, the microstructure, the chemical homogeneity, and the magnetic properties of the cobalt ferrite system. All the produced particles are superparamagnetic at room temperature. Nevertheless, the substitution causes reduction of the blocking temperature which is mainly ascribed to partial cation exchange among the spinel-like sublattices of CoFe<sub>2</sub>
O<sub>4</sub>
 induced by the insertion of the relatively large RE<sup>3+</sup>
 ions. The low-temperature saturation magnetization and coercivity appear to be greatly affected by the nature of RE<sup>3+</sup>
 ions-maxima values were found for Gd<sup>3+</sup>
 and Eu<sup>3+</sup>
, respectively.</div>
</front>
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<fA03 i2="1"><s0>J. magn. magn. mater.</s0>
</fA03>
<fA05><s2>320</s2>
</fA05>
<fA06><s2>23</s2>
</fA06>
<fA08 i1="01" i2="1" l="ENG"><s1>Magnetic properties of Cofe<sub>1.9</sub>
RE<sub>0.1</sub>
O<sub>4</sub>
 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>BEN TAHAR (L.)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>ARTUS (M.)</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>AMMAR (S.)</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>SMIRI (L. S.)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>HERBST (F.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>VAULAY (M.-J.)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>RICHARD (V.)</s1>
</fA11>
<fA11 i1="08" i2="1"><s1>GRENECHE (J.-M.)</s1>
</fA11>
<fA11 i1="09" i2="1"><s1>VILLAIN (F.)</s1>
</fA11>
<fA11 i1="10" i2="1"><s1>FIEVET (F.)</s1>
</fA11>
<fA14 i1="01"><s1>Unité de Recherche 99/UR12-30, Faculté des Sciences de Bizerte</s1>
<s2>7021 Jarzouna</s2>
<s3>TUN</s3>
<sZ>1 aut.</sZ>
<sZ>4 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>ITODYS, Université Paris Diderot, UMR-CNRS 7086, 2 Place Jussieu</s1>
<s2>75251 Paris</s2>
<s3>FRA</s3>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>10 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>LMPTM, Institut Galilée, UPR-CNRS 9001, 99 Avenue Jean-Baptiste Clément</s1>
<s2>93430 Villetaneuse</s2>
<s3>FRA</s3>
<sZ>7 aut.</sZ>
</fA14>
<fA14 i1="04"><s1>LPEC, Université du Maine, UMR-CNRS 6087, Avenue Olivier Messiaen</s1>
<s2>72085 Le Mans</s2>
<s3>FRA</s3>
<sZ>8 aut.</sZ>
</fA14>
<fA14 i1="05"><s1>LCI2M, Université Paris 6. UMR-CNRS 7071, 4 Place Jussieu</s1>
<s2>75251 Paris</s2>
<s3>FRA</s3>
<sZ>9 aut.</sZ>
</fA14>
<fA20><s1>3242-3250</s1>
</fA20>
<fA21><s1>2008</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>17230</s2>
<s5>354000184279560070</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2008 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>45 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>08-0518493</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Journal of magnetism and magnetic materials</s0>
</fA64>
<fA66 i1="01"><s0>NLD</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Highly crystalline Cofe<sub>1.9</sub>
RE<sub>0.1</sub>
O<sub>4</sub>
 ferrite nanoparticles, where RE = La, Ce, Nd, Sm, Eu, Gd, Tb, and Ho, have been synthesized by forced hydrolysis in polyol. X-ray diffraction (XRD), transmission electron microscopy (TEM), electron energy-loss spectroscopy (EELS), <sup>57</sup>
 Fe Mossbauer spectrometry, Co K-edge X-ray absorption spectroscopy and magnetic measurements using a SQUID magnetometer were employed to investigate the effect of the substitution RE<sup>3+</sup>
 ions for Fe<sup>3+</sup>
 ones on the structure, the microstructure, the chemical homogeneity, and the magnetic properties of the cobalt ferrite system. All the produced particles are superparamagnetic at room temperature. Nevertheless, the substitution causes reduction of the blocking temperature which is mainly ascribed to partial cation exchange among the spinel-like sublattices of CoFe<sub>2</sub>
O<sub>4</sub>
 induced by the insertion of the relatively large RE<sup>3+</sup>
 ions. The low-temperature saturation magnetization and coercivity appear to be greatly affected by the nature of RE<sup>3+</sup>
 ions-maxima values were found for Gd<sup>3+</sup>
 and Eu<sup>3+</sup>
, respectively.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B70E75</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Propriété magnétique</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Magnetic properties</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Composition chimique</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>Chemical composition</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Diffraction RX</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>XRD</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Microscopie électronique transmission</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Transmission electron microscopy</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Spectre perte énergie électron</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Electron energy loss spectra</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Effet Mössbauer</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Moessbauer effect</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Spectre absorption RX</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>X-ray absorption spectra</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Substitution ion</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Ion substitution</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Sustitución ión</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Microstructure</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Microstructure</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Fer Cobalt Lanthanide Oxyde Mixte</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Iron Cobalt Rare earths Oxides Mixed</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Mixto</s0>
<s2>NC</s2>
<s2>NA</s2>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Nanoparticule</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Nanoparticles</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Ferrites</s0>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Ferrites</s0>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Particule magnétique</s0>
<s5>20</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Magnetic particles</s0>
<s5>20</s5>
</fC03>
<fN21><s1>343</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

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Magnetic properties of Cofe1.9RE0.1O4 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol

Magnetic properties of Cofe1.9RE0.1O4 nanoparticles (RE = La, Ce, Nd, Sm, Eu, Gd, Tb, Ho) prepared in polyol

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