Effect of 6ss lone pair of Bi3+Bi3+ on electrical transport properties of (La1-xBix)0.67Ca0.33MnO3(La1-xBix)0.67Ca0.33MnO3

Electrical transport and magnetic properties of Bi3+Bi3+ ion doped (La1-xBix)0.67Ca0.33MnO3(0⩽x⩽0.2)(La1-xBix)0.67Ca0.33MnO3(0⩽x⩽0.2) have been investigated. Experimental results show that the Bi3+Bi3+ dopant and its doping level x   have an obvious effect on the electrical transport and magnetic properties of the (La1-xBix)0.67Ca0.33MnO3(La1-xBix)0.67Ca0.33MnO3. Especially, in a higher Bi3+Bi3+ doping level of 0.05