Crystal Electric Field Analysis on the Magnetic Properties of Ferromagnetic CeRuGe Single Crystal
This study reports the ferromagnetic properties of CeRuGe single crystals, characterized by a transition at 7.5 K and a magnon gap, while demonstrating that the material's magnetic anisotropy and easy axis along the [001] direction are quantitatively consistent with a crystal electric field model featuring a ground state doublet and two excited states at 491 K and 671 K.