@misc{10481/107966,
year = {2025},
month = {11},
url = {https://hdl.handle.net/10481/107966},
abstract = {Identifying new, scalable materials for memristive devices is critical to advance next-generation memory and 
neuromorphic technologies. In this context, electrodeposited Prussian Blue (PB), a mixed-valence iron hex
acyanoferrate compound, is emerging as a highly promising candidate due to its low-cost synthesis, CMOS 
compatibility, and rich redox chemistry. Here, we report both experimental evidence and theoretical modeling of 
conductance quantization in memristive devices employing PB as the active dielectric layer. PB thin films were 
synthesized via electrodeposition and integrated into a conventional metal–insulator–metal (MIM) structure (Ag/ 
PB/Au), which exhibits robust and reproducible resistive switching behavior. Notably, we observe quantized 
conductance steps at integer and half-integer multiples of the quantum of conductance (G
 0
 =2e2/h), indicative 
of atomic-scale filament formation and ballistic electron transport. To interpret these findings, we use a quantum 
transport model based on the finite-bias Landauer formalism, incorporating a series resistance and a non-ideality 
parameter (
 α
 ), which successfully reproduces the experimental I V characteristics. An algorithm is also 
introduced to extract the model parameters directly from measured data. The emergence of quantized states is 
attributed to the properties of PB due to its open-framework structure, mixed Fe2/Fe3 valence, and reversible 
ionic mobility, which allow the formation of atomic conduction channels. These results highlight the potential of 
PB-based memristors for multilevel memory storage and neuromorphic computing, while offering a scalable, 
CMOS-compatible, and sustainable materials platform.},
organization = {MCIN/AEI/10.13039/501100011033 PID2022-139586NB-C44, RYC2022-035618-I},
organization = {FEDER, EU},
organization = {FSE+},
organization = {Deutsche Forschungsgemeinschaft
 (No. 531524052)},
publisher = {Elsevier},
keywords = {Memristors},
keywords = {Prussian blue},
keywords = {Resistive memory},
title = {Conductance quantization in memristive devices with electrodeposited Prussian blue-based dielectrics},
doi = {10.1016/j.mssp.2025.110253},
author = {Cantudo, Antonio and Villena, M.A. and Jiménez Molinos, Francisco and Roldán Aranda, Juan Bautista},
}