ISSN:
1573-7357
Keywords:
74.10,+v
;
74.25.Bt, Ha
;
74.72.−h
;
74.72.Jt
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00753906
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