Pnictidoxide – eine neue Klasse von Hoch‐T_C‐Supraleitern

Abstract

Konkurrenz für die Cuprate: Eine neue Klasse von Hochtemperatur‐Supraleitern wurde entdeckt: Pnictidoxide der Seltenerdmetalle wie LaFeAs(O1−xFx) (siehe Kristallstruktur) werden bei Temperaturen bis zu 55 K mit kritischen Feldern um 60 T supraleitend. 22 Jahre nach der Entdeckung der Cuprate ist damit eine neue Ära für die Supraleiter‐Forschung angebrochen.

Palladium site ordering and the occurrence of superconductivity in Bi2Pd3Se2−xSx

“…Twenty years after the discovery of superconducting cuprates, novel pnictide superconductors like FeAsSmO or BaFeAs again initiated high interest in this field (see [1,2]). As both have layered crystal structures, attempts for a deeper understanding and design of superconductors based on structure-property relations [3][4][5] were encouraged.…”

Synthesis, Structure, Bonding, and Properties of the Oxide Carbide ScAlOC, a New Type of Compound

“…Furthermore there is a wide range of possibilities for the substitution of anions and/or cations as well. This is of special interest with reference to the very recently discovered superconductivity of pnictide oxides (for example LaFePO). This structure type shows remarkable similarities to ScAlOC in regard to the same composition and the parallel existence of two structurally different cations and anions as well.…”