Figure 3

(a) Backscattered electron (BSE) image and (b–d) elemental mapping by SEM equipped with EDX on the surface of \({\text {Pr}}_2 {\text {Co}}_{0.86} {\text {Si}}_{2.88}\) from the region presented in (a). (e) presents EDX results of \({\text {Pr}}_2 {\text {Co}}_{0.86} {\text {Si}}_{2.88}\).