Phys. Rev. Lett. 87, 047003 (2001) [4 pages]Band-Structure Trend in Hole-Doped Cuprates and Correlation with TcmaxReceived 4 December 2000; published 10 July 2001 By calculation and analysis of the bare conduction bands in a large number of hole-doped high-temperature superconductors, we have identified the range of the intralayer hopping as the essential, material-dependent parameter. It is controlled by the energy of the axial orbital, a hybrid between Cu4s, apical-oxygen 2pz, and farther orbitals. Materials with higher Tcmax have larger hopping ranges and axial orbitals more localized in the CuO2 layers. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.047003
DOI:
10.1103/PhysRevLett.87.047003
PACS:
74.25.Jb, 74.62.Bf, 74.62.Fj, 74.72.-h
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