A New ZrCuSiAs-Type Superconductor: ThFeAsN.

Authors :: Wang C
Wang ZC
Mei YX
Li YK
Li L
Tang ZT
Liu Y
Zhang P
Zhai HF
Xu ZA
Cao GH
Source :: Journal of the American Chemical Society [J Am Chem Soc] 2016 Feb 24; Vol. 138 (7), pp. 2170-3. Date of Electronic Publication: 2016 Feb 12.
Publication Year :: 2016
Abstract: We report the first nitrogen-containing iron-pnictide superconductor ThFeAsN, which is synthesized by a solid-state reaction in an evacuated container. The compound crystallizes in a ZrCuSiAs-type structure with the space group P4/nmm and lattice parameters a = 4.0367(1) Å and c = 8.5262(2) Å at 300 K. The electrical resistivity and dc magnetic susceptibility measurements indicate superconductivity at 30 K for the nominally undoped ThFeAsN.