Question

I've been facing a question recently on ionic conduction and have not had much luck coming across resources to reference (if there are some please point me in their direction!)In a mixed conductor there is some ionic conductivity and some electron conductivity. We can expect both of these charge carriers to be in flow simultaneously and homogeneously throughout the material (?). If this mixed conductor also happens to have magnetic properties; specifically if it exhibits Magnetoresistance such as in the mixed conductor SrFeO3 then how does this variable resistance affect ion conduction? Does it differ from the normal effects of resistance on electron conduction?

Answer 1

In a mixed conductor like SrFeO3, magnetoresistance affects both ion conduction and electron conduction.

Step-by-step explanation:

In a mixed conductor like SrFeO3 that exhibits magnetoresistance, the variable resistance affects both ion conduction and electron conduction. Magnetoresistance refers to the change in electrical resistance of a material in response to an applied magnetic field. In the case of SrFeO3, the magnetic properties affect not only the flow of electrons but also the motion of ions, thus impacting both types of charge carriers.