The crystalline electric field as a probe for long range antiferromagnetic order and superconductivity in CeFeAsO${}_{1-x}$F${}_x$

Songxue Chi, D. T. Adroja, T. Guidi +10

We use inelastic neutron scattering to study the crystalline electric field (CEF) excitations of Ce${}^{3+}$ in CeFeAsO${}_{1-x}$F${}_x$($x=0,0.16$). For nonsuperconducting CeFeAsO, th…