Comparative study of nano-sized particles CoFe2O4 effects on superconducting properties of Y-123 and Y-358
Identifieur interne : 000004 ( PascalFrancis/Corpus ); précédent : 000003; suivant : 000005Comparative study of nano-sized particles CoFe2O4 effects on superconducting properties of Y-123 and Y-358
Auteurs : Y. Slimani ; E. Hannachi ; M. K. Ben Salem ; A. Hamrita ; A. Varilci ; W. Dachraoui ; M. Ben Salema ; F. Ben AzzouzSource :
- Physica. B, Condensed matter [ 0921-4526 ] ; 2014.
Descripteurs français
- Pascal (Inist)
- Transition supraconductrice, Conductivité électrique, Réaction état solide, Microstructure, Diffraction RX, Microscopie électronique balayage, Paramètre cristallin, Grosseur grain, Site impureté, Stoechiométrie, Nanoparticule, Cobalt Fer Oxyde Mixte, Supraconducteur haute température, Baryum Cuivre Yttrium Oxyde Mixte, Polycristal, Nanocomposite, CoFe2O4, Ferrite de cobalt, Cuprate d'yttrium et de baryum, Y3Ba5Cu8O18, YBa2Cu3O7.
English descriptors
- KwdEn :
- Barium Copper Yttrium Oxides Mixed, Cobalt Iron Oxides Mixed, Electrical conductivity, Grain size, High-Tc superconductors, Impurity site, Lattice parameters, Microstructure, Nanocomposites, Nanoparticles, Polycrystals, Scanning electron microscopy, Solid state reaction, Stoichiometry, Superconducting transitions, XRD.
Abstract
The effects of nano-sized CoFe2O4 particles (10 nm) addition on the structural and the normal state resistivity of YBa2Cu3O7 (noted Y-123) and Y3Ba5Cu8O18 (noted Y-358) polycrystalline were systematically studied. Samples were synthesized in oxygen atmosphere using a standard solid state reaction technique by adding CoFe2O4 up to 2 wt%. Phases, microstructure and superconductivity have been systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurements ρ(T). XRD results reveal that the lattice parameters change for both Y-123 and Y-358 phases. SEM observations reveal that the grain size is reduced with increasing the content of CoFe2O4. The measurements for the resistivity dependence of temperature show that the depression in superconducting temperature is more pronounced for CoFe2O4 addition in Y-358 compound than in Y-123 one. These results may be attributed to the existence of much more disorder due to a greater number of Cu sites to be substituted by Fe and Co in Y-358 compared to Y-123.
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Format Inist (serveur)
| NO : | PASCAL 14-0214453 INIST |
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| ET : | Comparative study of nano-sized particles CoFe2O4 effects on superconducting properties of Y-123 and Y-358 |
| AU : | SLIMANI (Y.); HANNACHI (E.); BEN SALEM (M. K.); HAMRITA (A.); VARILCI (A.); DACHRAOUI (W.); BEN SALEMA (M.); BEN AZZOUZ (F.) |
| AF : | Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage/7021 Zarzouna/Tunisie (1 aut., 2 aut., 3 aut., 4 aut., 7 aut., 8 aut.); Faculty of Arts and Sciences, Department of Physics, Abant Izzet Baysal University/14280 Bolu/Turquie (5 aut.); CINaM-CNRS, Luminy Campus/13288 Marseille/France (6 aut.); College of Sciences-Girls, Department of Physics, University of Dammam/Arabie Saoudite (8 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Physica. B, Condensed matter; ISSN 0921-4526; Royaume-Uni; Da. 2014; Vol. 450; Pp. 7-15; Bibl. 35 ref. |
| LA : | Anglais |
| EA : | The effects of nano-sized CoFe2O4 particles (10 nm) addition on the structural and the normal state resistivity of YBa2Cu3O7 (noted Y-123) and Y3Ba5Cu8O18 (noted Y-358) polycrystalline were systematically studied. Samples were synthesized in oxygen atmosphere using a standard solid state reaction technique by adding CoFe2O4 up to 2 wt%. Phases, microstructure and superconductivity have been systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurements ρ(T). XRD results reveal that the lattice parameters change for both Y-123 and Y-358 phases. SEM observations reveal that the grain size is reduced with increasing the content of CoFe2O4. The measurements for the resistivity dependence of temperature show that the depression in superconducting temperature is more pronounced for CoFe2O4 addition in Y-358 compound than in Y-123 one. These results may be attributed to the existence of much more disorder due to a greater number of Cu sites to be substituted by Fe and Co in Y-358 compared to Y-123. |
| CC : | 001B70D62D |
| FD : | Transition supraconductrice; Conductivité électrique; Réaction état solide; Microstructure; Diffraction RX; Microscopie électronique balayage; Paramètre cristallin; Grosseur grain; Site impureté; Stoechiométrie; Nanoparticule; Cobalt Fer Oxyde Mixte; Supraconducteur haute température; Baryum Cuivre Yttrium Oxyde Mixte; Polycristal; Nanocomposite; CoFe2O4; Ferrite de cobalt; Cuprate d'yttrium et de baryum; Y3Ba5Cu8O18; YBa2Cu3O7 |
| ED : | Superconducting transitions; Electrical conductivity; Solid state reaction; Microstructure; XRD; Scanning electron microscopy; Lattice parameters; Grain size; Impurity site; Stoichiometry; Nanoparticles; Cobalt Iron Oxides Mixed; High-Tc superconductors; Barium Copper Yttrium Oxides Mixed; Polycrystals; Nanocomposites |
| SD : | Reacción estado sólido; Sitio impureza; Mixto; Mixto |
| LO : | INIST-145B.354000507639040020 |
| ID : | 14-0214453 |
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Ben Azzouz</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>College of Sciences-Girls, Department of Physics, University of Dammam</s1><s3>SAU</s3><sZ>8 aut.</sZ></inist:fA14></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">14-0214453</idno><date when="2014">2014</date><idno type="stanalyst">PASCAL 14-0214453 INIST</idno><idno type="RBID">Pascal:14-0214453</idno><idno type="wicri:Area/PascalFrancis/Corpus">000004</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Comparative study of nano-sized particles CoFe<sub>2</sub>O<sub>4</sub> effects on superconducting properties of Y-123 and Y-358</title><author><name sortKey="Slimani, Y" sort="Slimani, Y" uniqKey="Slimani Y" first="Y." last="Slimani">Y. Slimani</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hannachi, E" sort="Hannachi, E" uniqKey="Hannachi E" first="E." last="Hannachi">E. Hannachi</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ben Salem, M K" sort="Ben Salem, M K" uniqKey="Ben Salem M" first="M. K." last="Ben Salem">M. K. Ben Salem</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Hamrita, A" sort="Hamrita, A" uniqKey="Hamrita A" first="A." last="Hamrita">A. Hamrita</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Varilci, A" sort="Varilci, A" uniqKey="Varilci A" first="A." last="Varilci">A. Varilci</name><affiliation><inist:fA14 i1="02"><s1>Faculty of Arts and Sciences, Department of Physics, Abant Izzet Baysal University</s1><s2>14280 Bolu</s2><s3>TUR</s3><sZ>5 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Dachraoui, W" sort="Dachraoui, W" uniqKey="Dachraoui W" first="W." last="Dachraoui">W. Dachraoui</name><affiliation><inist:fA14 i1="03"><s1>CINaM-CNRS, Luminy Campus</s1><s2>13288 Marseille</s2><s3>FRA</s3><sZ>6 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ben Salema, M" sort="Ben Salema, M" uniqKey="Ben Salema M" first="M." last="Ben Salema">M. Ben Salema</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ben Azzouz, F" sort="Ben Azzouz, F" uniqKey="Ben Azzouz F" first="F." last="Ben Azzouz">F. Ben Azzouz</name><affiliation><inist:fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></inist:fA14></affiliation><affiliation><inist:fA14 i1="04"><s1>College of Sciences-Girls, Department of Physics, University of Dammam</s1><s3>SAU</s3><sZ>8 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Physica. B, Condensed matter</title><title level="j" type="abbreviated">Physica, B Condens. matter</title><idno type="ISSN">0921-4526</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Physica. B, Condensed matter</title><title level="j" type="abbreviated">Physica, B Condens. matter</title><idno type="ISSN">0921-4526</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Barium Copper Yttrium Oxides Mixed</term><term>Cobalt Iron Oxides Mixed</term><term>Electrical conductivity</term><term>Grain size</term><term>High-Tc superconductors</term><term>Impurity site</term><term>Lattice parameters</term><term>Microstructure</term><term>Nanocomposites</term><term>Nanoparticles</term><term>Polycrystals</term><term>Scanning electron microscopy</term><term>Solid state reaction</term><term>Stoichiometry</term><term>Superconducting transitions</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Transition supraconductrice</term><term>Conductivité électrique</term><term>Réaction état solide</term><term>Microstructure</term><term>Diffraction RX</term><term>Microscopie électronique balayage</term><term>Paramètre cristallin</term><term>Grosseur grain</term><term>Site impureté</term><term>Stoechiométrie</term><term>Nanoparticule</term><term>Cobalt Fer Oxyde Mixte</term><term>Supraconducteur haute température</term><term>Baryum Cuivre Yttrium Oxyde Mixte</term><term>Polycristal</term><term>Nanocomposite</term><term>CoFe2O4</term><term>Ferrite de cobalt</term><term>Cuprate d'yttrium et de baryum</term><term>Y3Ba5Cu8O18</term><term>YBa2Cu3O7</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The effects of nano-sized CoFe<sub>2</sub>O<sub>4</sub> particles (10 nm) addition on the structural and the normal state resistivity of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> (noted Y-123) and Y<sub>3</sub>Ba<sub>5</sub>Cu<sub>8</sub>O<sub>18</sub> (noted Y-358) polycrystalline were systematically studied. Samples were synthesized in oxygen atmosphere using a standard solid state reaction technique by adding CoFe<sub>2</sub>O<sub>4</sub> up to 2 wt%. Phases, microstructure and superconductivity have been systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurements ρ(T). XRD results reveal that the lattice parameters change for both Y-123 and Y-358 phases. SEM observations reveal that the grain size is reduced with increasing the content of CoFe<sub>2</sub>O<sub>4</sub>. The measurements for the resistivity dependence of temperature show that the depression in superconducting temperature is more pronounced for CoFe<sub>2</sub>O<sub>4</sub> addition in Y-358 compound than in Y-123 one. These results may be attributed to the existence of much more disorder due to a greater number of Cu sites to be substituted by Fe and Co in Y-358 compared to Y-123.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0921-4526</s0></fA01><fA03 i2="1"><s0>Physica, B Condens. matter</s0></fA03><fA05><s2>450</s2></fA05><fA08 i1="01" i2="1" l="ENG"><s1>Comparative study of nano-sized particles CoFe<sub>2</sub>O<sub>4</sub> effects on superconducting properties of Y-123 and Y-358</s1></fA08><fA11 i1="01" i2="1"><s1>SLIMANI (Y.)</s1></fA11><fA11 i1="02" i2="1"><s1>HANNACHI (E.)</s1></fA11><fA11 i1="03" i2="1"><s1>BEN SALEM (M. K.)</s1></fA11><fA11 i1="04" i2="1"><s1>HAMRITA (A.)</s1></fA11><fA11 i1="05" i2="1"><s1>VARILCI (A.)</s1></fA11><fA11 i1="06" i2="1"><s1>DACHRAOUI (W.)</s1></fA11><fA11 i1="07" i2="1"><s1>BEN SALEMA (M.)</s1></fA11><fA11 i1="08" i2="1"><s1>BEN AZZOUZ (F.)</s1></fA11><fA14 i1="01"><s1>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage</s1><s2>7021 Zarzouna</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ></fA14><fA14 i1="02"><s1>Faculty of Arts and Sciences, Department of Physics, Abant Izzet Baysal University</s1><s2>14280 Bolu</s2><s3>TUR</s3><sZ>5 aut.</sZ></fA14><fA14 i1="03"><s1>CINaM-CNRS, Luminy Campus</s1><s2>13288 Marseille</s2><s3>FRA</s3><sZ>6 aut.</sZ></fA14><fA14 i1="04"><s1>College of Sciences-Girls, Department of Physics, University of Dammam</s1><s3>SAU</s3><sZ>8 aut.</sZ></fA14><fA20><s1>7-15</s1></fA20><fA21><s1>2014</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>145B</s2><s5>354000507639040020</s5></fA43><fA44><s0>0000</s0><s1>© 2014 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>35 ref.</s0></fA45><fA47 i1="01" i2="1"><s0>14-0214453</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Physica. B, Condensed matter</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>The effects of nano-sized CoFe<sub>2</sub>O<sub>4</sub> particles (10 nm) addition on the structural and the normal state resistivity of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> (noted Y-123) and Y<sub>3</sub>Ba<sub>5</sub>Cu<sub>8</sub>O<sub>18</sub> (noted Y-358) polycrystalline were systematically studied. Samples were synthesized in oxygen atmosphere using a standard solid state reaction technique by adding CoFe<sub>2</sub>O<sub>4</sub> up to 2 wt%. Phases, microstructure and superconductivity have been systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurements ρ(T). XRD results reveal that the lattice parameters change for both Y-123 and Y-358 phases. SEM observations reveal that the grain size is reduced with increasing the content of CoFe<sub>2</sub>O<sub>4</sub>. The measurements for the resistivity dependence of temperature show that the depression in superconducting temperature is more pronounced for CoFe<sub>2</sub>O<sub>4</sub> addition in Y-358 compound than in Y-123 one. These results may be attributed to the existence of much more disorder due to a greater number of Cu sites to be substituted by Fe and Co in Y-358 compared to Y-123.</s0></fC01><fC02 i1="01" i2="3"><s0>001B70D62D</s0></fC02><fC03 i1="01" i2="3" l="FRE"><s0>Transition supraconductrice</s0><s5>02</s5></fC03><fC03 i1="01" i2="3" l="ENG"><s0>Superconducting transitions</s0><s5>02</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Conductivité électrique</s0><s5>03</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Electrical conductivity</s0><s5>03</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Réaction état solide</s0><s5>04</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Solid state reaction</s0><s5>04</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Reacción estado sólido</s0><s5>04</s5></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Microstructure</s0><s5>05</s5></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Microstructure</s0><s5>05</s5></fC03><fC03 i1="05" i2="3" l="FRE"><s0>Diffraction RX</s0><s5>06</s5></fC03><fC03 i1="05" i2="3" l="ENG"><s0>XRD</s0><s5>06</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Microscopie électronique balayage</s0><s5>07</s5></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Scanning electron microscopy</s0><s5>07</s5></fC03><fC03 i1="07" i2="3" l="FRE"><s0>Paramètre cristallin</s0><s5>08</s5></fC03><fC03 i1="07" i2="3" l="ENG"><s0>Lattice parameters</s0><s5>08</s5></fC03><fC03 i1="08" i2="3" l="FRE"><s0>Grosseur grain</s0><s5>09</s5></fC03><fC03 i1="08" i2="3" l="ENG"><s0>Grain size</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Site impureté</s0><s5>10</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Impurity site</s0><s5>10</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Sitio impureza</s0><s5>10</s5></fC03><fC03 i1="10" i2="3" l="FRE"><s0>Stoechiométrie</s0><s5>11</s5></fC03><fC03 i1="10" i2="3" l="ENG"><s0>Stoichiometry</s0><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="X" l="FRE"><s0>Cobalt Fer Oxyde Mixte</s0><s1>SEC</s1><s2>NC</s2><s2>NA</s2><s5>16</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>Cobalt Iron Oxides Mixed</s0><s1>SEC</s1><s2>NC</s2><s2>NA</s2><s5>16</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Mixto</s0><s1>SEC</s1><s2>NC</s2><s2>NA</s2><s5>16</s5></fC03><fC03 i1="13" i2="3" l="FRE"><s0>Supraconducteur haute température</s0><s5>17</s5></fC03><fC03 i1="13" i2="3" l="ENG"><s0>High-Tc superconductors</s0><s5>17</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Baryum Cuivre Yttrium Oxyde Mixte</s0><s2>NC</s2><s2>NA</s2><s5>18</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>Barium Copper Yttrium Oxides Mixed</s0><s2>NC</s2><s2>NA</s2><s5>18</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Mixto</s0><s2>NC</s2><s2>NA</s2><s5>18</s5></fC03><fC03 i1="15" i2="3" l="FRE"><s0>Polycristal</s0><s5>19</s5></fC03><fC03 i1="15" i2="3" l="ENG"><s0>Polycrystals</s0><s5>19</s5></fC03><fC03 i1="16" i2="3" l="FRE"><s0>Nanocomposite</s0><s5>20</s5></fC03><fC03 i1="16" i2="3" l="ENG"><s0>Nanocomposites</s0><s5>20</s5></fC03><fC03 i1="17" i2="3" l="FRE"><s0>CoFe2O4</s0><s4>INC</s4><s5>52</s5></fC03><fC03 i1="18" i2="3" l="FRE"><s0>Ferrite de cobalt</s0><s4>INC</s4><s5>53</s5></fC03><fC03 i1="19" i2="3" l="FRE"><s0>Cuprate d'yttrium et de baryum</s0><s4>INC</s4><s5>55</s5></fC03><fC03 i1="20" i2="3" l="FRE"><s0>Y3Ba5Cu8O18</s0><s4>INC</s4><s5>92</s5></fC03><fC03 i1="21" i2="3" l="FRE"><s0>YBa2Cu3O7</s0><s4>INC</s4><s5>93</s5></fC03><fN21><s1>258</s1></fN21></pA></standard><server><NO>PASCAL 14-0214453 INIST</NO><ET>Comparative study of nano-sized particles CoFe<sub>2</sub>O<sub>4</sub> effects on superconducting properties of Y-123 and Y-358</ET><AU>SLIMANI (Y.); HANNACHI (E.); BEN SALEM (M. K.); HAMRITA (A.); VARILCI (A.); DACHRAOUI (W.); BEN SALEMA (M.); BEN AZZOUZ (F.)</AU><AF>Laboratory of Physics of Materials-Structures and Properties, Department of Physics, Faculty of Sciences of Bizerte, University of Carthage/7021 Zarzouna/Tunisie (1 aut., 2 aut., 3 aut., 4 aut., 7 aut., 8 aut.); Faculty of Arts and Sciences, Department of Physics, Abant Izzet Baysal University/14280 Bolu/Turquie (5 aut.); CINaM-CNRS, Luminy Campus/13288 Marseille/France (6 aut.); College of Sciences-Girls, Department of Physics, University of Dammam/Arabie Saoudite (8 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Physica. B, Condensed matter; ISSN 0921-4526; Royaume-Uni; Da. 2014; Vol. 450; Pp. 7-15; Bibl. 35 ref.</SO><LA>Anglais</LA><EA>The effects of nano-sized CoFe<sub>2</sub>O<sub>4</sub> particles (10 nm) addition on the structural and the normal state resistivity of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> (noted Y-123) and Y<sub>3</sub>Ba<sub>5</sub>Cu<sub>8</sub>O<sub>18</sub> (noted Y-358) polycrystalline were systematically studied. Samples were synthesized in oxygen atmosphere using a standard solid state reaction technique by adding CoFe<sub>2</sub>O<sub>4</sub> up to 2 wt%. Phases, microstructure and superconductivity have been systematically investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrical measurements ρ(T). XRD results reveal that the lattice parameters change for both Y-123 and Y-358 phases. SEM observations reveal that the grain size is reduced with increasing the content of CoFe<sub>2</sub>O<sub>4</sub>. The measurements for the resistivity dependence of temperature show that the depression in superconducting temperature is more pronounced for CoFe<sub>2</sub>O<sub>4</sub> addition in Y-358 compound than in Y-123 one. These results may be attributed to the existence of much more disorder due to a greater number of Cu sites to be substituted by Fe and Co in Y-358 compared to Y-123.</EA><CC>001B70D62D</CC><FD>Transition supraconductrice; Conductivité électrique; Réaction état solide; Microstructure; Diffraction RX; Microscopie électronique balayage; Paramètre cristallin; Grosseur grain; Site impureté; Stoechiométrie; Nanoparticule; Cobalt Fer Oxyde Mixte; Supraconducteur haute température; Baryum Cuivre Yttrium Oxyde Mixte; Polycristal; Nanocomposite; CoFe2O4; Ferrite de cobalt; Cuprate d'yttrium et de baryum; Y3Ba5Cu8O18; YBa2Cu3O7</FD><ED>Superconducting transitions; Electrical conductivity; Solid state reaction; Microstructure; XRD; Scanning electron microscopy; Lattice parameters; Grain size; Impurity site; Stoichiometry; Nanoparticles; Cobalt Iron Oxides Mixed; High-Tc superconductors; Barium Copper Yttrium Oxides Mixed; Polycrystals; Nanocomposites</ED><SD>Reacción estado sólido; Sitio impureza; Mixto; Mixto</SD><LO>INIST-145B.354000507639040020</LO><ID>14-0214453</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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