Neutron-Scattering Measurements of Spin Excitations in LaFeAsO andBa(Fe0.953Co0.047)2As2: Evidence for a Sharp Enhancement of Spin Fluctuations by Nematic Order

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Coexistence of Competing Antiferromagnetic and Superconducting Phases in the UnderdopedBa(Fe0.953Co0.047)2As2Compound Using X-ray and Neutron Scattering Techniques

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