@article{3808bdb204f642e38f6fb514c7f0e546,
title = "Effect of pnictogen height on spin waves in iron pnictides",
abstract = "We use inelastic neutron scattering to study spin waves in the antiferromagnetic ordered phase of iron pnictide NaFeAs throughout the Brillouin zone. Comparing with the well-studied AFe2As2 (A=Ca, Sr, Ba) family, spin waves in NaFeAs have considerably lower zone boundary energies and more isotropic effective in-plane magnetic exchange couplings. These results are consistent with calculations from a combined density functional theory and dynamical mean field theory and provide strong evidence that pnictogen height controls the strength of electron-electron correlations and consequently the effective bandwidth of magnetic excitations.",
author = "Chenglin Zhang and Harriger, {Leland W.} and Zhiping Yin and Weicheng Lv and Miaoyin Wang and Guotai Tan and Yu Song and Abernathy, {D. A.} and Wei Tian and Takeshi Egami and Kristjan Haule and Gabriel Kotliar and Pengcheng Dai",
year = "2014",
month = may,
day = "28",
doi = "10.1103/PhysRevLett.112.217202",
language = "English",
volume = "112",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "21",
}