The JCPDS (Joint Committee on Powder Diffraction Standards) card number for ZnNiMnFeO4 ferrite is 22-1086 (Structural and magnetic...). You can find the JCPDS card number for other materials by using the ICDD (International Centre for Diffraction Data) database (XRD pattern of...).
I hope this helps! Let me know if you have any more questions.
Source:
(1) Structural and magnetic properties of cobalt ferrite nanoparticles .... https://pubs.aip.org/aip/adv/article/8/5/056303/1025481/Structural-and-magnetic-properties-of-cobalt.
(3) Journal of Alloys and Compounds - ScienceDirect. https://www.sciencedirect.com/science/article/pii/S092583881300385X.
(4) XRD pattern of CoFe2O4 obtained at 500 °C along with JCPDS Data (Card.... https://www.researchgate.net/figure/XRD-pattern-of-CoFe2O4-obtained-at-500C-along-with-JCPDS-Data-Card-No-22-1086_fig2_319167972.
(5) Where can i get the JCPDS card? | ResearchGate. https://www.researchgate.net/post/Where_can_i_get_the_JCPDS_card.