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Magnetic and transport properties of PrBa2Cu4O8-δ prepared at 1 atm oxygen pressure (1996)

Ku, H. C. ; You, Y. B. ; Sheen, S. R. ; [weitere]

Springer

Journal of low temperature physics 105 (1996), S. 1463-1468

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Details

ISSN: 1573-7357

Schlagwort(e): 74.10,+v ; 74.25.Bt, Ha ; 74.72.−h ; 74.72.Jt

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract Measurements of physical properties were performed on the PrBa2Cu4O8-δ sample prepared by the sol-gel method and sintered in I atm oxygen pressure. Instead of exhibiting superconductivity as for R Y or Gd in the RBa2Cu4O8-δ compound. This compound is unstable, insulating but metallic-like at low temperatures. No superconductivity was observed down to 2 K. Since PrBa2Cu4O8-δ can be re-written as Cu2Ba2PrCu2O8-δ which is a compound of two CuO2-layers and two CuO-chains, the possibility of anomalous Pr antiferromagnetic ordering around 18 K observed from preliminary magnetic data and the effect of oxygen stoichiotmetry parameter δ on the metal-insulator transition are explored.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00753906

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