Coexistence of magneto-resistance and -capacitance tunability in   Sm2Ga2Fe2O9
  We propose that charge gradient resulting in the coexisting magneto-resistance and-capacitance tunability in material systems. We have experimentally observed coexisting of tunable magneto-resistance and -capacitance in Sm2Ga2Fe2O9. Our model fits well with the experimental result. 
Ye Wu
cond-mat.mtrl-sci