double layers

Vasko, I. . Y., Agapitov, O., Mozer, F., & Artemyev, A. (2015). Thermal electron acceleration by electric field spikes in the outer radiation belt: Generation of field-aligned pitch angle distributions. Journal Of Geophysical Research: Space Physics. http://doi.org/10.1002/2015JA021644 (Original work published October 2015)
Vasko, I. . Y., Agapitov, O., Mozer, F., Bonnell, J., Artemyev, A., Krasnoselskikh, V., et al. (2017). Electron-acoustic solitons and double layers in the inner magnetosphere. Geophysical Research Letters. http://doi.org/10.1002/2017GL074026 (Original work published May 2017)