The system BiPbSr2Fe1−xTxO6+z, (T ≡ Co, Ni)

Fries, Thomas; Kürthy, G.Mayer-Von; Ehmann, A.; Wischert, W.; Kemmler‐Sack, S.

doi:10.1016/0022-5088(90)90161-c

Cited by 11 publications

(2 citation statements)

References 8 publications

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“…Though sintering was performed at 800 • C for 10 min, only a chemical reaction between the two compounds was observed. This was confirmed by XRD (figure 1), which shows the possible existence of BiFePbSr 2 O 6.1 , another perovskite-like compound [19], as an intermediate compound in this system.…”

Section: R(t ) Curves and Raman Spectra For Bi-2212/bifeosupporting

confidence: 58%

“…It must be underlined that in these experiments we used partly Pb-substituted Bi-2212, of a composition close to Bi 1.6 Pb 0.4 Sr 2 CaCu 2 O 8 . XRD spectra reveal in this composite the existence of a possibly intermediate compound that could be BiFePbSr 2 O 6.1 (JCPDS file no 42-047) [19]. This presumption is supported by the analogy between the weak new peaks observed after sintering and the strongest peaks of this compound (figure 1).…”

Section: Bifeomentioning

confidence: 51%

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Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃

Nadifi¹,

Ouali²,

Grigorescu³

et al. 2000

Supercond. Sci. Technol.

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Preparation of Bi-2223/Bi-2310 and Bi-2212/BiFeO 3 composites has been performed so as to obtain some active composites where the superconductive properties of Bi-2223 or Bi-2212 can be modified using a property of the insulating phase. In both cases superconductive percolation was obtained, but only in the case of a Bi-2223 (or Bi-2212)/Bi-2310 composite was no (or very weak) chemical reaction observed during sintering. Since the superconductive percolation threshold was obtained in this case for a concentration of Bi-2223 or Bi-2212 lower than 20%, a special composite model had to be considered. The Bi-2212/BiFeO 3 system is very interesting due to the ferroic properties of BiFeO 3 . Superconductive percolation was achieved with this mixture too, but with more difficulties because of a chemical reaction occurring between the two compounds during sintering. A study of the properties of these composites has been performed and will be briefly described in what follows. The good quality of the Bi-2223(or Bi-2212)/Bi-2310 composite enables us to expect some future applications.

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Section: R(t ) Curves and Raman Spectra For Bi-2212/bifeosupporting

confidence: 58%

Section: Bifeomentioning

confidence: 51%

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃

Nadifi¹,

Ouali²,

Grigorescu³

et al. 2000

Supercond. Sci. Technol.

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ChemInform Abstract: The System BiPbSr2Fe1‐xTxO6+z (T: Co, Ni).

et al. 1990

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008ChemInform Abstract It is found that the degree of substitution of Co or Ni for iron in the title system strongly influences the electrical properties. The electrical resistivity markedly decreases with increasing x. The structure within the title system follows the general building principles of the series (AO)2M2Bn-1FenO3n+1+z and consists of perovskite-like slabs with one iron-oxygen octahedron intercalated between AO double layers.

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Crystallographic and magnetic structures of highT c related (Bi/Pb)2Sr2FeO6.25 determined by neutron powder diffraction

Stüßer

Sonntag

Hohlwein

et al. 1991

Z. Physik B - Condensed Matter

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The system BiPbSr2Fe1−xTxO6+z, (T ≡ Co, Ni)

Cited by 11 publications

References 8 publications

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃

ChemInform Abstract: The System BiPbSr2Fe1‐xTxO6+z (T: Co, Ni).

Crystallographic and magnetic structures of highT c related (Bi/Pb)2Sr2FeO6.25 determined by neutron powder diffraction

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The system BiPbSr2Fe1−xTxO6+z, (T ≡ Co, Ni)

Cited by 11 publications

References 8 publications

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO3

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO3

ChemInform Abstract: The System BiPbSr2Fe1‐xTxO6+z (T: Co, Ni).

Crystallographic and magnetic structures of highT c related (Bi/Pb)2Sr2FeO6.25 determined by neutron powder diffraction

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Product

Resources

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Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃

Superconductive percolation in Bi-based superconductor/Bi-based insulator composites: case of Bi-2223/Bi-2310 and Bi-2212/BiFeO₃