Electrical Resistivity, Magnetic Susceptibility, and Infrared Spectra of Superconducting RBa2Cu3O7 with R = Y,Sc,Tm,Ho,Eu,Nd,Gd

  • H. Gruber
  • E. Krautz
  • H. P. Fritzer
  • K. Gatterer
  • G. Sperka
  • W. Sitte
  • A. Popitsch

Abstract

Superconductivity in the metallic oxide system Ba-La-Cu-O at temperatures above 30 K has first been reported in October 1986 by J.G.Bednorz and K.A.Mü11er1. By partial substitution of Ba with Sr C.W.Chu et al2 obtained a compound with a transition temperature Tc of about. 55 K. In February 1987 M.K.Wu, C.W.Chu et al3 found a sensationally high Tc of about 93 K in the oxide system Y-Ba-Cu-O. The superconducting phase in this system was identified by R.J.Cava et al.4 as a layered orthorhombic distorted, oxygen-deficient perovskite structure with the composition YBa2Cu3O9-d where d = 2.1.

Keywords

Magnetic Susceptibility Electrical Resistivity Partial Substitution Superconducting Phase Paramagnetic Contribution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    J.G.Bednorz and K.A.Müller, Possible High-Tc Superconductivity in the Ba-La-Cu-O System, Z.Phys.B 64: 189 (1986).CrossRefGoogle Scholar
  2. 2.
    C.W.Chu, P.H.Hor, R.L.Meng, L.Gao, Z.J.Huang, and Y.Q.Wang, Superconductivity at 54,5 K in the Lanthanum-BariumCopper-Oxide system, Phys.Rev.Lett. 58: 405 (1987).CrossRefGoogle Scholar
  3. 3.
    M.K.Wu, J.R.Ashborn, C.J.Torng, P.H.Hor, R.L.Meng, L.Gao, Z.J.Huang, and C.W.Chu, Superconductivity at 93 K in a New Mixed-Phase Y-Ba-Cu-O Compound System at Ambient Pressure, Phys.Rev.Lett. 58: 908 (1987).CrossRefGoogle Scholar
  4. 4.
    R.J.Cava, B.Batlogg, R.B.van Dover, D.W.Murphy, S.Sunshine, T.Siegrist, J.P.Remeika, E.A.Rietman, S.Zahurak, and G.P.Espinosa, Bulk Superconductivity at 91 K in Single-Phase Oxygen-Deficient Perovskite Ba2YCu309-d, Phys.Rev.Lett. 58: 1676 (1987).CrossRefGoogle Scholar
  5. 5.
    H.Gruber, E.Krautz, K.Gatterer, and H.P.Fritzer, Temperaturabhängigkeit und Strukturabhängigkeit der elektrischen Leitfähigkeit und magnetischen Suszeptibilität von Metalloxiden, Annual Meeting of the Austrian Physical Society, September 23-25, 1987, Graz, Austria.Google Scholar
  6. 6.
    H.Gruber, H.P.Fritzer, K.Gatterer, G.Sperka, und W.Sitte, Einfluß der Struktur und Nichtstöchiometrie auf die physikalischen Eigenschaften von Metalloxiden, 7th Annual Meeting of the Austrian Chemical Society, November 3-6, 1987, Wien. Austria.Google Scholar
  7. H.Gruber, H.P.Fritzer, K.Gatterer, W.Sitte, and A.Popitsch, Physical Properties and Chemical Doping of Superconducting Perovskites, to be presented at the International Conference on High-Temperature Superconductors and Materials and Mechanism of Superconductivity, February 29 - March 4, 1988, Interlaken, Switzerland.Google Scholar
  8. 8.
    L.Pau.ling, Influence of Valence, Electronegativity, Atomic Radii and Crest-Trough Interactions with Phonons on the High-Temperature Copper-Oxide Superconductors, Phys.Rev.Lett. 59: 225 (1987).CrossRefGoogle Scholar
  9. 9.
    M.Murakami, H.Teshina, M.Morita, S.Matsuda, H.Hamada, M.Matsuo, T.Innzuka, R.Suyama, M.Sugiyama, K.Sawano, H.Kubo, M.Abe, and M.Nagumo, Superconductivity in High-Tc Rare Earth Ba-Cu-Oxide, J.Appl.Phys.Japan 26: 1061 (1987).Google Scholar
  10. 10.
    D.Cahen, Z.Moisi, and M.Schwartz, Effects of Ag/Cu Substitution in YBa2Cu30; superconductors, Mat.Res.Bull. 22: 1581 (1987).CrossRefGoogle Scholar
  11. 11.
    M.Cardona, R.Liu, C.Thomsen, M.Bauer, L.Genzel, W.König, A.Wittlin, U.Amador, M.Barahona, F.Fernandez, C.Otero, and R.Saez, Infrared and Raman Spectra of the New Superconducting Cuprate Perovskites MBa2Cu307, M = Nd,Dy,Er,Tm, Solid State Commun. 65 (1): 71 (1987).Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • H. Gruber
    • 1
  • E. Krautz
    • 1
  • H. P. Fritzer
    • 2
  • K. Gatterer
    • 2
  • G. Sperka
    • 2
  • W. Sitte
    • 2
  • A. Popitsch
    • 3
  1. 1.Institut für FestkörperphysikUSA
  2. 2.Institut für Physikalische und Theoretische ChemieTechnische UniversitätAustria
  3. 3.Institut für Anorganische ChemieUniversität GrazGrazAustria

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