Colloidal superionic conductors
Journal Article
·
· Proceedings of the National Academy of Sciences of the United States of America
- Northwestern University, Evanston, IL (United States)
Nanoparticles with highly asymmetric sizes and charges that self-assemble into crystals via electrostatics may exhibit behaviors reminiscent of those of metals or superionic materials. Here, we use coarse-grained molecular simulations with underdamped Langevin dynamics to explore how a binary charged colloidal crystal reacts to an external electric field. As the field strength increases, we find transitions from insulator (ionic state), to superionic (conductive state), to laning, to complete melting (liquid state). In the superionic state, the resistivity decreases with increasing temperature, which is contrary to metals, yet the increment decreases as the electric field becomes stronger. Additionally, we verify that the dissipation of the system and the fluctuation of charge currents obey recently developed thermodynamic uncertainty relation. Our results describe charge transport mechanisms in colloidal superionic conductors.
- Research Organization:
- Northwestern Univ., Evanston, IL (United States); Northwestern University, Evanston, IL (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- FG02-08ER46539
- OSTI ID:
- 1968531
- Alternate ID(s):
- OSTI ID: 2419276
OSTI ID: 3012700
- Journal Information:
- Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 15 Vol. 120; ISSN 1091-6490; ISSN 0027-8424
- Publisher:
- National Academy of SciencesCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Applied Physical Sciences
Colloidal Crystals
Colloidal crystals
Dissipation
Lane Formation
Lane formation
Physical Sciences
Science & Technology
Sublattice Melting
Sublattice melting
Thermodynamic Uncertainty Relations
Thermodynamic uncertainty relations
Applied Physical Sciences
Colloidal Crystals
Colloidal crystals
Dissipation
Lane Formation
Lane formation
Physical Sciences
Science & Technology
Sublattice Melting
Sublattice melting
Thermodynamic Uncertainty Relations
Thermodynamic uncertainty relations