Ternary lanthanoid-transition metal pnictides with ThCr2Si2-type structure

Magnetic structure of theEu2+moments in superconductingEuFe2(As1−xNandi1, Jin2, Xiao3 et al. 2014Phys. Rev. B407320View full textAdd to dashboardCite

“…7 electronic configuration with the electron spin S = 7/2 [11]. EuFe 2 As 2 exhibits a spin density wave (SDW) transition in the Fe sublattice concomitant with a structural phase transition at 190 K. In addition, Eu 2+ moments order in an A-type antiferromagnetic (AFM) structure at 19 K (ferromagnetic layers ordered antiferromagnetically along the c direction) [12][13][14].…”

Superconductivity and ferromagnetism in EuFe2(As1−xPx)2

“…EuFe 2 As 2 , first synthesized in late 1970s, [15] is a unique "122" compound which shows both SC in the FeAs-layers upon appropriate doping, and long-range magnetic ordering in the Eu sublattice. It was found that the undoped parent compound undergoes antiferromagnetic (AFM) ordering in the Fe sublattice at 200 K, followed by another AFM ordering in the Eu sublattice at 20 K. [16,17,18,19] The two subsystems are hardly coupled, as evidenced from optical [20] and photoemission [21] studies.…”

Synthesis and crystal structure of the iron polyphosphide FeP4

“…In the course of that investigation we also studied the phosphorus-rich part of the iron-phosphorus system. We were especially interested to see whether the preparation techniques (iodine as catalyst; tin as a flux) which we have used to grow crystals of LaFe4P~2, La6Ni6P~7 (Braun & Jeitschko, 1978a), and EUCOEP 2 (Marchand & Jeitschko, 1978) could also be utilized to synthesize new binary polyphosphides. With these techniques we have already obtained crystals of CrP 4 and MnP 4 which previously were prepared only under pressure (Jeitschko & Donohue, 1972, as well as the new compounds RuP 4 and OsP 4 (Braun & Jeitschko, 1978b).…”