Abstract
The newly-discovered homologous series HgBa2Can-1CunO2n+2+δ [Hg-12 (n-1)n] with n = 1, 2, 3,... possesses the highest superconducting transition-temperature (Tc) to date. Unfortunately, because of the complexity of its compound chemistry, it remains a challenge to prepare samples with pure or nearly-pure Hg-12 (n-1)n for both scientific and applied studies. In the present investigation, we report the successful development of a controlled vapor/solid reaction process for the synthesis of samples with up to 75 to 90% Hg-1212 and 65 to 75% Hg-1223 by volume, which display sharp superconducting transitions up to 135 K. Detailed steps of the process are presented and discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 21-28 |
| Number of pages | 8 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 216 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1993 Oct 15 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering