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 ...
Main Authors: | , , , , , , , , , , , , , , , , |
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Format: | Article |
Language: | English |
Published: |
American Physical Society
2018-06-01
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Series: | Physical Review X |
Online Access: | http://doi.org/10.1103/PhysRevX.8.021056 |