Ion vibration current

The ion vibration current (IVI) and the associated ion vibration potential is an electric signal that arises when an acoustic wave propagates through a homogeneous fluid.

Historically, the IVI was the first known electroacoustic phenomenon. It was predicted by Peter Debye in 1933. He pointed out that the difference in the effective mass or friction coefficient between anions and cations would result in different displacement amplitudes in a longitudinal wave. This difference creates an alternating electric potential between various points in a sound wave. This effect was extensively used in the 1950s and 1960s for characterizing ion solvation. These works are mostly associated with the names of Zana and Yaeger, who published a review of their studies in 1982.

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