Chemical and structural effects on the electronic states of (Hg, Tl, Pb, Bi)-based cuprate superconductors

Conference · Wed Jun 01 00:00:00 EDT 1994 · Journal of Superconductivity; (United States)

OSTI ID:7103608

Graves, J S; Allen, R E ^[1]; Richert, B A ^[2]

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1. Texas A M Univ., College Station, TX (United States)
2. Air Force Academy, Colorado Springs, CO (United States)

The electronic energy bands have been calculated for the new single-layer and triple-layer Hg-based superconductors, HgBa[sub 2]CuO[sub 4] and HgBa[sub 2]Ca[sub 2]Cu[sub 3]O[sub y], for the analogous Tl- and Bi-based materials, and for hypothetical Pb-based materials. As one moves across the last row of the periodic table, from Hg to Bi, s- and p-derived bands pass below the Fermi energy, to influence hole doping of the copper oxide planes and transport in the other layers of the material. The dispersion of these bands is significantly affected by the crystal structure. The calculations were performed with a simple chemical model. 10 refs., 2 figs.

• OSTI ID: 7103608
• Report Number(s): CONF-930710--; CNN: N00014-93-1-10072
• Journal Information: Journal of Superconductivity; (United States), Journal Name: Journal of Superconductivity; (United States) Vol. 7:3; ISSN JOUSEH; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALINE EARTH METAL COMPOUNDS
BAND THEORY
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CERAMICS
COPPER COMPOUNDS
CRYSTAL DOPING
CRYSTAL STRUCTURE
CUPRATES
ELECTRONIC STRUCTURE
HIGH-TC SUPERCONDUCTORS
LEAD COMPOUNDS
MERCURY COMPOUNDS
OXYGEN COMPOUNDS
SUPERCONDUCTORS
THALLIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS