Ferritin-Based Single-Electron Devices
Jacqueline A. Labra-Muñoz (Kavli institute of nanoscience Delft, TU Delft - QN/van der Zant Lab, Universiteit Leiden)
Arie de Reuver (Student TU Delft, Kavli institute of nanoscience Delft)
Friso Koeleman (Kavli institute of nanoscience Delft, Student TU Delft)
Martina Huber (Universiteit Leiden)
Herre S.J. van der Zant (Kavli institute of nanoscience Delft, TU Delft - QN/van der Zant Lab)
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Abstract
We report on the fabrication of single-electron devices based on horse-spleen ferritin parti-cles. At low temperatures the current vs. voltage characteristics are stable, enabling the acquisition of reproducible data that establishes the Coulomb blockade as the main transport mechanism through them. Excellent agreement between the experimental data and the Coulomb blockade theory is demonstrated. Single-electron charge transport in ferritin, thus, establishes a route for further characterization of their, e.g., magnetic, properties down to the single-particle level, with prospects for electronic and medical applications.