Elemental fractionation and magnetic properties of melt-based Y1Ba2Cu3Oz containing excess Tb or Pt

Elemental fractionation and magnetic properties of melt-based Y1Ba2Cu3Oz containing excess Tb or Pt

Scanning electron microscopy of certain partially melted Y-Ba-Cu-O materials containing minority metal oxide species (Y:Tb:Ba:Cu = 1:0.1:2:3 or Y:Ba:Cu with Pt impurities), accompanied by both EDX and EMP analysis, indicates that the minority species (Tb or Pt) is quantitatively concentrated in a re...

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Veröffentlicht in:Materials research bulletin 1990, Vol.25 (8 19), p.1025-1033
Hauptverfasser: Hojaji, Hamid, Barkatt, Aaron, Hu, Shouxiang, Michael, Karen A., Thorpe, Arthur N., Talmy, Inna G., Haught, Debbie A., Alterescu, Sidney
Format: Artikel
Sprache:eng
Schlagworte:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Other methods of structure determination
Physics
Solid-State Physics
Structure of solids and liquids
crystallography
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Zusammenfassung:Scanning electron microscopy of certain partially melted Y-Ba-Cu-O materials containing minority metal oxide species (Y:Tb:Ba:Cu = 1:0.1:2:3 or Y:Ba:Cu with Pt impurities), accompanied by both EDX and EMP analysis, indicates that the minority species (Tb or Pt) is quantitatively concentrated in a relatively small number of 123-type grains. High magnetic susceptibility and magnetization observed for these materials indicate that such elemental distribution is not detrimental to superconducting behavior.
ISSN:0025-5408
1873-4227
DOI:10.1016/0025-5408(90)90010-Y