The comprehensive analysis of AC electrical conductivity in magnetite was performed in order to find relations between the formation of polarons, phonons and conduction by a virtual free electron gas. The analysis performed here for the first time shows experimental data for the behavior of electrons for magnetite with the scattering time shifted to the GHz region. According to our study, the DC electrical conductivity can be described by the virtual free electron gas model, and high frequency conductivity can be described by the combination of the Drude model for disordered materials and Jonscher's universal power law. The observed peak at the imaginary part of AC conductivity was related to the scattering time of the electron-phonon coupling. This interaction between electrons and thermally formed phonons results in the formation of large polarons, and these are responsible for high frequency conductivity in magnetite.

综合分析磁铁矿中的交流电导率，以找出极化子、声子的形成与虚拟自由电子气传导之间的关系。此处首次进行的分析显示了磁铁矿电子行为的实验数据，其中散射时间移至 GHz 区域。根据我们的研究，直流电导率可以用虚拟自由电子气模型来描述，高频电导率可以用无序材料的德鲁德模型和 Jonscher 的通用幂定律相结合来描述。在交流电导率虚部观察到的峰与电子-声子耦合的散射时间有关。