Dynamic Spin-Lattice Coupling and Nematic Fluctuations in NaFeAs

We use inelastic neutron scattering to study acoustic phonons and spin excitations in single crystals of NaFeAs, a parent compound of iron-pnictide superconductors. NaFeAs exhibits a tetragonal-to-orthorhombic structural transition at T_{s}≈58  K and a collinear antiferromagnetic order at T_{N}≈45  ...

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Bibliographic Details
Main Authors: Yu Li, Zahra Yamani, Yu Song, Weiyi Wang, Chenglin Zhang, David W. Tam, Tong Chen, Ding Hu, Zhuang Xu, Songxue Chi, Ke Xia, Li Zhang, Shifeng Cui, Wenan Guo, Ziming Fang, Yi Liu, Pengcheng Dai
Format: Article
Language:English
Published: American Physical Society 2018-06-01
Series:Physical Review X
Online Access:http://doi.org/10.1103/PhysRevX.8.021056