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  THE GROWTH OF ZN-DOPED YBCO SINGLE-CRYSTALS

Lin, C., Li, S., Mackenzie, A. P., Zhou, W., Hunneyball, P., & Liang, W. (1992). THE GROWTH OF ZN-DOPED YBCO SINGLE-CRYSTALS. Physica C-Superconductivity and its Applications, 193(1-2), 129-136. doi:10.1016/0921-4534(92)90879-H.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-E7D2-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-E7D4-1
Genre: Journal Article

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 Creators:
Lin, C.T.1, Author
Li, S.X.1, Author
Mackenzie, A. P.2, Author              
Zhou, W.1, Author
Hunneyball, P.D.1, Author
Liang, W.Y.1, Author
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1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: Single crystals of YBa2Cu3-xZnxO7-y (x less-than-or-equal-to 0.066) were obtained through long periodic step growth by adding ZnO to the primary phase region of the YBa2Cu3O7-y phase on the YBa2Cu3O7-y-BaCu3O4 pseudo-binary line. The solubility of zinc in YBCO is found to be relatively low. The chemical composition (including oxygen) has been accurately determined for all the Zn-doped YBCO crystals by EPMA. XRD showed that all the crystals were orthorhombic and the unit cell volume increased continuously with increasing zinc concentration. Crystals which had been annealed in oxygen showed a T(c) at 74, 72, 68 and 63 K for x = 0.037, 0.042, 0.055 and 0.066, respectively. The primary phase was found to be located at the region having high fractions of BaCu3O4. In the course of the crystal growth study, several insulating compounds with approximate formulae YBaZn3-xCuxOy, Y2(Cu,Zn)xOy and (Y,Cu)BaZn2Oy were also found from the melt after solidification. The phase of YBaZn3-xCuxOy was identified to be hexagonal with a approximately 5.0 angstrom and c approximately 9.5 angstrom.

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 Dates: 1992-04-01
 Publication Status: Published in print
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Title: Physica C-Superconductivity and its Applications
  Other : Physica C
Source Genre: Journal
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Publ. Info: Amsterdam : North-Holland
Pages: - Volume / Issue: 193 (1-2) Sequence Number: - Start / End Page: 129 - 136 Identifier: ISSN: 0921-4534
CoNE: /journals/resource/954925564683