Power law behaviors of electrical conductivities in lithium manganese oxides

Nakamura K; Shimokita K; Sakamoto Y; Hirano H; Michihiro Y; Moriga T

Solid State Ionics, Vol.225, 538-541, 2012

DOI10.1016/j.ssi.2011.11.021 Export Citation

Power law behaviors of electrical conductivities in lithium manganese oxides

Nakamura K, Shimokita K, Sakamoto Y, Hirano H, Michihiro Y, Moriga T

Complex impedance measurements have been performed to study electrical conducting behaviors of LiMn2O4 exposed to milling. The electrical conductivity of non-milled LiMn2O4 deviated from a typical exponent power law behavior sigma(omega)=sigma(0)+A omega boolean AND n with the exponent n =1 and obeyed the power law with 0.6

Keywords:Electrical conductivity;Non-Debye model;LiMn2O4;Mechanical milling