TY - JOUR T1 - Magneto-optical and structural properties of Cr-doped ZnO as a dilute magnetic semiconductor TT - بررسی خواص مگنتواپتیکی و ساختاری نیمرسانای مغناطیسی رقیق ZnO با ناخالصی کروم JF - opsi JO - opsi VL - 20 IS - 0 UR - http://opsi.ir/article-1-156-en.html Y1 - 2014 SP - 269 EP - 272 KW - chemical precipitation KW - dilute magnetic semiconductor KW - band gap KW - magneto-optical Kerr effect KW - sol-gel. N2 - Abstract- The optical, structural and magnetic properties of Cr-doped ZnO disc-shaped pellet prepared by chemical precipitation method and thin films prepared by sol-gel method have been investigated. The XRD patterns for both samples show ZnO Wurtzite structure, no peak for secondary phase such as Cr clusters or chromium oxides is detectable within the precision of XRD which confirms that Cr ions enter the structure as dopant. All thin films show high transmittance in the visible region . And magnetic measurement carried out by magneto-optical Kerr effect (MOKE) confirms the ferromagnetic behavior of the pellet form sample. M3 ER -