Double origin of stochastic granular tribocharging.

  title={Double origin of stochastic granular tribocharging.},
  author={Jan Haeberle and Andr{\'e} Schella and Matthias Sperl and Matthias Schr{\"o}ter and Philip Born},
  journal={Soft matter},
  volume={14 24},
The mechanisms underlying triboelectric charging have a stochastic nature. We investigate how this randomness affects the distributions of charges generated on granular particles during either a single or many collisions. The charge distributions we find in our experiments are more heavy-tailed than normal distributions with an exponential decay of the probability, they are asymmetric, and exhibit charges of both signs. Moreover, we find a linear correlation between the width and mean of these… Expand

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