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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 11, Number 6
BKCSDE 11(6)
June 20, 1990 

 
Title
Structural and Magnetic Studies on Electrochemically Lithiated PrBa2Cu3Oy
Author
Jin-Ho Choy*, Sung-Ho Chun, Seong-Gu Kang
Keywords
Abstract
A lithiated compound Li0.1Pr3+Ba2Cu3Oy has been successfully prepared by electrochemical method, which is achieved with a two electrode cell of the type: Metal(Li)/(Li+, ClO4-) + propylene carbonate/PrBa2Cu3Oy. All Pr ions in the lithiated compound are stabilized with a trivalent state as the other rare earths (Ⅲ) substituted in the 90K superconductor lattice (Y1-xLnxBa2Cu3O7-δ). Powder X-ray diffraction analysis shows that both compounds, PrBa2Cu3Oy and Li0.1PrBa2Cu3Oy are isostructural with the 90 K superconductor, (YBa2Cu3O7-δ), nevertheless both of them are non-metallic and also non-superconducting down to 10 K. Magnetic susceptibility χ vs. temperature data indicate that Curie contribution from the magnetic ions (Pr and Cu) is weakened on the one hand, but on the other hand temperature-independent part of susceptibility χ0 increases depending upon the rate of lithium intercalation in PrBa2Cu3Oy lattice.
Page
564 - 567
Full Text
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