Surplus and deficient regions of Hg, Pb and TI atoms are found at some edges of a typical Hgo.55Pbo.asTlo.2BazCa2Cu3Oy superconducting grain. The formation of these regions can be explained by a simple model which takes into account the growth of grains during the Hg superconducting phase formation
✦ LIBER ✦
High-pressure synthesis and superconductivity of a Ba free mercury-based superconductor (Hg0.75Re0.25)Sr2Ca2Cu3Oy
✍ Scribed by K. Yamaura; J. Shimoyama; S. Hahakura; Z. Hiroi; M. Takano; K. Kishio
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 433 KB
- Volume
- 246
- Category
- Article
- ISSN
- 0921-4534
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The structural and superconducting properties of Hg 0.75 Re 0.25 Ba 2؊x Sr x Ca 2 Cu 3 O 8؉ (x ؍ 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) grown by sol+gel and sealed quartz tube synthesis were investigated through XRD, EDX, and micro-Raman analysis. They show that the e7ciency of c-axis reduction caused by t