Synthesis and characterisation of RuSr2NdxGd 1-xCu2O8 compounds (x = 0, 0.03, 0.06 and 0.12)

Paolo Mele, C. Artini, R. Masini, G. A. Costa, A. Hu, N. Chikumoto, Masato Murakami

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

RuSr2NdxGd1-xCu2O8 samples (x=0, 0.03, 0.06 and 0.12) were synthesised by a solid state route, using mixed rare earth oxides (NdxGd1-x)2O 3, prepared by a co-precipitation method, as precursors. Magnetoresistance measurements showed that the resistive transition temperature decreased and broadened with increasing Nd doping, suggesting that Nd really entered the lattice. The resistive transition curves in applied field exhibited typical polycrystalline behaviour with two peaks in their first derivative, identified as intra and intergrain superconducting transitions. XRD data also supported the fact that Nd ion entered the Ru-1212 lattice, yielding an ordered tetragonal structure at low Nd doping level. At higher Nd concentrations, the structure becomes disordered probably due to Nd/Sr solid solution.

Original languageEnglish
Pages (from-to)196-200
Number of pages5
JournalPhysica C: Superconductivity and its Applications
Volume412-414
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2004 Oct

Fingerprint

Doping (additives)
Magnetoresistance
synthesis
Coprecipitation
Oxides
Rare earths
Superconducting transition temperature
Solid solutions
solid solutions
rare earth elements
transition temperature
routes
Ions
Derivatives
solid state
oxides
curves
ions

Keywords

  • Ruthenocuprates
  • Substitutions
  • Superconductivity
  • Synthesis

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Synthesis and characterisation of RuSr2NdxGd 1-xCu2O8 compounds (x = 0, 0.03, 0.06 and 0.12). / Mele, Paolo; Artini, C.; Masini, R.; Costa, G. A.; Hu, A.; Chikumoto, N.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 412-414, No. SPEC. ISS., 10.2004, p. 196-200.

Research output: Contribution to journalArticle

Mele, Paolo ; Artini, C. ; Masini, R. ; Costa, G. A. ; Hu, A. ; Chikumoto, N. ; Murakami, Masato. / Synthesis and characterisation of RuSr2NdxGd 1-xCu2O8 compounds (x = 0, 0.03, 0.06 and 0.12). In: Physica C: Superconductivity and its Applications. 2004 ; Vol. 412-414, No. SPEC. ISS. pp. 196-200.
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AU - Artini, C.

AU - Masini, R.

AU - Costa, G. A.

AU - Hu, A.

AU - Chikumoto, N.

AU - Murakami, Masato

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AB - RuSr2NdxGd1-xCu2O8 samples (x=0, 0.03, 0.06 and 0.12) were synthesised by a solid state route, using mixed rare earth oxides (NdxGd1-x)2O 3, prepared by a co-precipitation method, as precursors. Magnetoresistance measurements showed that the resistive transition temperature decreased and broadened with increasing Nd doping, suggesting that Nd really entered the lattice. The resistive transition curves in applied field exhibited typical polycrystalline behaviour with two peaks in their first derivative, identified as intra and intergrain superconducting transitions. XRD data also supported the fact that Nd ion entered the Ru-1212 lattice, yielding an ordered tetragonal structure at low Nd doping level. At higher Nd concentrations, the structure becomes disordered probably due to Nd/Sr solid solution.

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