Abstract
The infinite-layer (IL) systems have rather simple crystal structures and thereby offer an ideal system for an improved understanding of the phenomenon of high-Tc superconductivity. The production of IL compounds is by no means trivial, since the synthesis of single-phase material requires both high pressures and high temperatures. The infinite-layer compounds of the (Sr, Ln)CuO2 family have been prepared by a new synthesis method from the low-pressure phase of SrCuO2 and NdCuO2 as starting materials. The actual rare-earth content in the IL phase is shown to depend on both temperature and pressure. Crystal structure of the IL samples have been studied using neutron powder diffraction and X-ray measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 818-820 |
| Number of pages | 3 |
| Journal | Physica B: Physics of Condensed Matter |
| Volume | 234-236 |
| DOIs | |
| State | Published - Jun 2 1997 |
| Externally published | Yes |
Funding
This research was supported by the Russian Foundation for Basic Researches (Grant No. 96-02-16699-a) and the Russian Scientific Council on High-To Problems (Project No. 93001). We are grateful to the ILL, Grenoble and JINR, Dubna for providing infrastructure facilities.
Keywords
- Crystal structure
- High-T superconductors
- Powder diffraction