Abstract
The band structure of La2CuSnO6 in both its real and idealized crystal structure was determined using the local density full-potential linearized muffin-tin orbital (LMTO) method. Unlike the case for all other high-Tc copper-based materials, the Fermi energy for the undoped crystal is located exactly on the van Hove saddle-point singularity, which may be the main reason for the lattice distortions observed in the real material. We suggest that a possible way, if any, to drive this compound into the superconducting state is to be achieved via electron doping. For several reasons, we do not expect a high Tc value.
Original language | English |
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Pages (from-to) | 7-12 |
Number of pages | 6 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 252 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - Oct 1 1995 |
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics