Neutron scattering investigation of rhenium orbital ordering in the $3d-5d$ double perovskite ${\mathrm{Ca}}_2{\mathrm{FeReO}}_6$

Bo Yuan, J. P. Clancy, J. A. Sears, A. I. Kolesnikov, M. B. Stone, Z. Yamani, Choongjae Won, Namjung Hur, B. C. Jeon, T. W. Noh, Arun Paramekanti, and Young-June Kim

Phys. Rev. B 98, 214433 (2018)