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Electronic structure of the mercury-based high-Tc compound with four CuO2 layers: HgBa2Can−1CunO2n+2 (n = 4)

✍ Scribed by C. Osvaldo Rodriguez; Ruben Weht; Mariana Weissmann; N.E. Christensen; E.L.Peltzer y Blancá

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 345 KB
Volume: 219
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)90006-x

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✦ Synopsis

The electronic structure of the tetrqonal ~-based compound containing four CuO2 planes, HgBa2Ca~Cu4Oto (Hg 1234), has been made from fn'st principles, within the local-density approxima*Jon using the full potential linear muffin-tin orbital method. The Hg-derived band which dopes the CuO2 planes dips further below the Fermi energy than in the compounds with n=2 and 3 planes (this band stays above the Fermi energy for nffi 1 ), increasing the degree of rig character of all sheets of the Fermi surface.

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