Results 41 to 50 of about 21,812,597 (319)

First-Principles-Based Optimized Design of Fluoride Electrolytes for Sodium-Ion Batteries

open access: yesMolecules, 2022
Because of the abundance and low cost of sodium, sodium-ion batteries (SIBs) are next-generation energy storage mediums. Furthermore, SIBs have become an alternative option for large-scale energy storage systems.
Shuhan Lu   +7 more
doaj   +1 more source

Cumulene Molecular Wire Conductance from First Principles [PDF]

open access: yes, 2010
We present first principles calculations of current-voltage characteristics (IVC) and conductance of Au(111):S2-cumulene-S2:Au(111) molecular wire junctions with realistic contacts.
A. Grigoriev   +5 more
core   +2 more sources

Shedding light on moiré excitons: A first-principles perspective [PDF]

open access: yesScience Advances, 2020
First-principles simulations are performed to shed light on moiré excitons in twisted MoS2/WS2 heterostructures. Moiré superlattices in van der Waals (vdW) heterostructures could trap long-lived interlayer excitons.
Hongli Guo, Xu Zhang, G. Lu
semanticscholar   +1 more source

Agentic Finance: An Adaptive Inference Framework for Bounded-Rational Investing Agents

open access: yesEntropy
We propose Adaptive Inference, a portfolio management framework extending Active Inference to non-stationary financial environments. The framework integrates inference, control, and execution under endogenous uncertainty, modeling investment decisions as
Samuel Montañez Jacquez   +2 more
doaj   +1 more source

Ferroelectric Phase Transitions from First Principles [PDF]

open access: yes, 1995
An effective Hamiltonian for the ferroelectric transition in $PbTiO_3$ is constructed from first-principles density-functional-theory total-energy and linear-response calculations through the use of a localized, symmetrized basis set of ``lattice Wannier
Rabe, K. M., Waghmare, U. V.
core   +3 more sources

Calculation of Mechanical Properties, Electronic Structure and Optical Properties of CsPbX3 (X = F, Cl, Br, I)

open access: yesMolecules, 2023
We utilized a first-principle density functional theory for a comprehensive analysis of CsPbX3 (X = F, Cl, Br, I) to explore its physical and chemical properties, including its mechanical behavior, electronic structure and optical properties ...
Yang Liu   +10 more
doaj   +1 more source

Semiclassical Universe from First Principles

open access: yes, 2004
Causal Dynamical Triangulations in four dimensions provide a background-independent definition of the sum over space-time geometries in nonperturbative quantum gravity.
Ambjørn   +25 more
core   +2 more sources

Exploring Spin-Phonon Coupling in Magnetic 2D Metal-Organic Frameworks

open access: yesNanomaterials, 2023
Layered magnetic metal-organic frameworks (MOFs) are an emerging class of materials that can combine the advantages of both MOFs and 2D magnetic crystals.
Diego López-Alcalá   +2 more
doaj   +1 more source

Discrepancy between experimental and theoretical β-decay rates resolved from first principles [PDF]

open access: yesNature Physics, 2019
The dominant decay mode of atomic nuclei is beta decay (β-decay), a process that changes a neutron into a proton (and vice versa). This decay offers a window to physics beyond the standard model, and is at the heart of microphysical processes in stellar ...
P. Gysbers   +10 more
semanticscholar   +1 more source

Interatomic Coulombic electron capture from first principles [PDF]

open access: yes, 2018
Interatomic Coulombic electron capture (ICEC) is an environment-assisted process in which a free electron can efficiently attach to an ion, atom or molecule by transferring the excess energy to a neighboring species. Absolute cross sections are necessary
Cederbaum, Lorenz S.   +4 more
core   +3 more sources

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