Abstract
The electronic structures of Sr2CuO2F2, Sr2CuO2Cl2, and Ca2CuO2Cl2 are investigated by means of the full-potential linear muffin-tin orbital method. As in other high-Tc cuprates, the electronic structures of these compounds display strong two-dimensional features including a low density of states at EF and a simple Fermi surface of the form of a rounded square. A major van Hove saddle-point singularity exists near the Fermi level. We predict the optimum superconductivity properties in these materials to occur when doped by 0.35-0.38 holes per unit cell.
| Original language | English |
|---|---|
| Pages (from-to) | 6675-6679 |
| Number of pages | 5 |
| Journal | Physical Review B |
| Volume | 51 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1995 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Electronic structure of superconductors without apical oxygen : Sr2CuO2F2, Sr2CuO2Cl2, and Ca2CuO2Cl2. / Novikov, D. L.; Freeman, Arthur J; Jorgensen, J. D.
In: Physical Review B, Vol. 51, No. 10, 1995, p. 6675-6679.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electronic structure of superconductors without apical oxygen
T2 - Sr2CuO2F2, Sr2CuO2Cl2, and Ca2CuO2Cl2
AU - Novikov, D. L.
AU - Freeman, Arthur J
AU - Jorgensen, J. D.
PY - 1995
Y1 - 1995
N2 - The electronic structures of Sr2CuO2F2, Sr2CuO2Cl2, and Ca2CuO2Cl2 are investigated by means of the full-potential linear muffin-tin orbital method. As in other high-Tc cuprates, the electronic structures of these compounds display strong two-dimensional features including a low density of states at EF and a simple Fermi surface of the form of a rounded square. A major van Hove saddle-point singularity exists near the Fermi level. We predict the optimum superconductivity properties in these materials to occur when doped by 0.35-0.38 holes per unit cell.
AB - The electronic structures of Sr2CuO2F2, Sr2CuO2Cl2, and Ca2CuO2Cl2 are investigated by means of the full-potential linear muffin-tin orbital method. As in other high-Tc cuprates, the electronic structures of these compounds display strong two-dimensional features including a low density of states at EF and a simple Fermi surface of the form of a rounded square. A major van Hove saddle-point singularity exists near the Fermi level. We predict the optimum superconductivity properties in these materials to occur when doped by 0.35-0.38 holes per unit cell.
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U2 - 10.1103/PhysRevB.51.6675
DO - 10.1103/PhysRevB.51.6675
M3 - Article
VL - 51
SP - 6675
EP - 6679
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 10
ER -