Magnetic state of a Zn$_{1-x}$Cr$_x$Se bulk crystal

The spin system of a Zn$_{1-x}$Cr$_x$Se bulk crystal ($x$ = 0.045) was studied using thermal-neutron diffraction and magnetic measurements. Previously, it was reported in the literature that thin films ($\sim$200 nm thick) of this type of semiconductors exhibit a ferromagnetic order. In this study, the ferromagnetic order is found to be absent in the bulk crystal.