Quantum chemical formulation of high-Tc superconductivity applied to α-FeSe
Journal article, 2010

High-Tc superconductivity (HTS) in the cuprates is revisited and employed to interpret the superconductivity phenomenon in α-FeSe. HTS in α-FeSe is proposed to emerge from accidental near degeneracy among spin zero Fe2+ states on a magnetic sublattice in a magnetically inhomogeneous reference state illustrated by density-functional theory calculations. The spin zero Fe2+ ions sublattice is embedded in a second sublattice, which displays antiferromagnetic order. Existence of the latter enforces the former, and causes the violation of Hund´s rule. Detailed contact with the conceptual understanding of superconductivity in the cuprates is made.


Itai Panas

Chalmers, Chemical and Biological Engineering, Environmental Inorganic Chemistry

Physical Review B

1095-3795 (ISSN)

Vol. 82 6 064508-

Subject Categories

Inorganic Chemistry

Theoretical Chemistry

Condensed Matter Physics



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