Evolution from B2g Nematics to B1g Nematics in Heavily Hole-Doped Iron-Based Superconductors

Recent experiments reported an unusual nematic behavior of heavily hole-doped pnictides AFe2As2, with alkali A=Rb, Cs. In contrast to the B2g nematic order of the parent AeFe2As2 compounds (with alkaline earth Ae=Sr, Ba), characterized by unequal nearest-neighbor Fe-Fe bonds, in the hole-doped syste...

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Veröffentlicht in:	Physical review letters 2019-09, Vol.123 (14)
Hauptverfasser:	Borisov, Vladislav, Fernandes, Rafael M, Valentí, Roser
Format:	Artikel
Sprache:	eng
Schlagworte:	Barium Computer simulation CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Density functional theory Evolution Ground state Group 5A compounds Iron Iron-based superconductors Nematic order Physics Pnictides Strontium Variations
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