Building brain-inspired logic circuits from dynamically switchable transition-metal oxides

JL Andrews, DA Santos, M Meyyappan, RS Williams… - Trends in Chemistry, 2019 - cell.com
Processing, storing, and transmitting information accounts for∼ 10% of global energy use;
projections suggest that computational energy demands will be 10× higher than the …

Localized Conduction Channels in Memristors

KS Woo, RS Williams, S Kumar - Chemical Reviews, 2024 - ACS Publications
Since the early 2000s, the impending end of Moore's scaling, as the physical limits to
shrinking transistors have been approached, has fueled interest in improving the …

Quantifying the role of the lattice in metal–insulator phase transitions

AB Georgescu, AJ Millis - Communications Physics, 2022 - nature.com
Many materials exhibit phase transitions at which both the electronic properties and the
crystal structure change. Some authors have argued that the change in electronic order is …

Bond disproportionation, charge self-regulation, and ligand holes in and in -electron perovskites by density functional theory

GM Dalpian, Q Liu, J Varignon, M Bibes, A Zunger - Physical Review B, 2018 - APS
Some ABX 3 perovskites exhibit different local environments (DLE) for the same B atoms in
the lattice, an effect referred to as disproportionation, distinguishing such compounds from …

Superconductivity in a Layered Cobalt Oxychalcogenide Na2CoSe2O with a Triangular Lattice

J Cheng, J Bai, B Ruan, P Liu, Y Huang… - Journal of the …, 2024 - ACS Publications
Unconventional superconductivity in bulk materials under ambient pressure is extremely
rare among the 3d transition metal compounds outside the layered cuprates and iron-based …

Hole‐Trapping‐Induced Stabilization of Ni4 + in SrNiO3/LaFeO3 Superlattices

L Wang, Z Yang, ME Bowden, JW Freeland… - Advanced …, 2020 - Wiley Online Library
Creating new functionality in materials containing transition metals is predicated on the
ability to control the associated charge states. For a given transition metal, there is an upper …

Negative Charge-Transfer Energy in SrCoO2.5 Thin Films: An Interplay between O-2p Hole Density, Charge-Transfer Energy, Charge Disproportionation, and …

S Chowdhury, A Jana, M Kuila, VR Reddy… - ACS Applied …, 2020 - ACS Publications
SrCoO2. 5 (SCO) bulk is found to be a charge-transfer insulator with a positive value of
charge-transfer energy (Δ) and 3d6 ground state, which achieves the antiferromagnetic …

Hole-induced electronic and optical transitions in epitaxial thin films

L Wang, Y Du, PV Sushko, ME Bowden… - Physical Review …, 2019 - APS
We have investigated the electronic and optical properties of epitaxial L a 1-x S rx Fe O 3 for
0≤ x≤ 1 prepared by molecular-beam epitaxy. Core-level and valence-band x-ray …

Origin of metal-insulator transitions in correlated perovskite metals

MC Bennett, G Hu, G Wang, O Heinonen, PRC Kent… - Physical Review …, 2022 - APS
The mechanisms that drive metal-to-insulator transitions (MIT) in correlated solids are not
fully understood, though intricate couplings of charge, spin, orbital, and lattice degrees of …

Metal-insulator transition and local-moment collapse in negative charge transfer under pressure

I Leonov - Physical Review B, 2022 - APS
We compute the electronic structure, spin and charge state of Fe ions, and the structural
phase stability of paramagnetic CaFeO 3 under pressure using a fully self-consistent in …