roceedings of the National Academy of Sciences

Jing Teng, Chen Chen, Yimin Xiong, Jiandi Zhang, Rongying Jin and E. W. Plummer have recently reported in Proceedings of the National Academy of Sciences [PNAS 110, 898 (2013)] the observation of extremely large spin-charge-lattice coupling driven by the broken symmetry present at the surface. The study was conducted on single crystals grown at LSU of the newly discovered Fe-based superconductors Ba(Fe1-xCox)2As2, using high resolution inelastic electron scattering to proble the lattice dynamics.