Abstract
Total energy local density determinations of the effects of pressure on the (Sr1-xCax)1-yCuO2 infinite layer (IL) Tc=110 K superconductor show, that the compressibility is highly anisotropic. Surprisingly, the energy location of the van Hove singularity (vHs) moves towards EF with pressure, thereby showing a correspondence between the number of holes (from dopants) needed to shift EF down to the vHs and the pressure needed to be applied to a fixed dopant material to achieve the best Tc. Some consequences for understanding the pressure effects on the Tc of the Hg superconductors and possible experiments are suggested.
| Original language | English |
|---|---|
| Pages (from-to) | 246-252 |
| Number of pages | 7 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 219 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Jan 1 1994 |
ASJC Scopus subject areas
- Condensed Matter Physics
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Novikov, D. L., Mryasov, O. N., & Freeman, A. J. (1994). Anisotropic compressibility and effects of pressure on the electronic structure and Tc for superconducting infinite layer compounds. Physica C: Superconductivity and its Applications, 219(1-2), 246-252. https://doi.org/10.1016/0921-4534(94)90042-6