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Quantum ESPRESSO toward the exascale.

TLDR
Quantum ESPRESSO as mentioned in this paper is an open-source distribution of computer codes for quantum-mechanical materials modeling, based on density-functional theory, pseudopotentials, and plane waves.
Abstract
Quantum ESPRESSO is an open-source distribution of computer codes for quantum-mechanical materials modeling, based on density-functional theory, pseudopotentials, and plane waves, and renowned for its performance on a wide range of hardware architectures, from laptops to massively parallel computers, as well as for the breadth of its applications. In this paper we present a motivation and brief review of the ongoing effort to port Quantum ESPRESSO onto heterogeneous architectures based on hardware accelerators, which will overcome the energy constraints that are currently hindering the way towards exascale computing.

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Interfacial ferroelectricity in marginally twisted 2D semiconductors

TL;DR: In this article , a room temperature ferroelectric semiconductor that is assembled using mono- or few-layer MoS2 is presented. But the results show a potential avenue towards room temperature electronic and optoelectronic semiconductor devices with built-in Ferroelectric memory functions.
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Understanding Performance Limiting Interfacial Recombination in pin Perovskite Solar Cells

TL;DR: In this paper , the cause of interfacial recombination at the perovskite/C60 interface is revealed via a combination of photoluminescence, photoelectron spectroscopy, and first-principle numerical simulations.
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DFT exchange: sharing perspectives on the workhorse of quantum chemistry and materials science

TL;DR: The history, present status, and future of density-functional theory (DFT) is informally reviewed and discussed by 70 workers in the field, including molecular scientists, materials scientists, method developers and practitioners as discussed by the authors .
Journal ArticleDOI

Five-second coherence of a single spin with single-shot readout in silicon carbide

- 04 Feb 2022 - 
TL;DR: In this paper , the authors demonstrate single-shot readout of single defects in silicon carbide via spin-to-charge conversion, whereby the defect's spin state is mapped onto a long-lived charge state.
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Multilevel Computational Studies Reveal the Importance of Axial Ligand for Oxygen Reduction Reaction on Fe-N-C Materials.

TL;DR: In this article , a multilevel computational approach is used to assess proton-coupled electron transfer (PCET) processes and adsorption thermodynamics of key ORR intermediates.
References
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Journal ArticleDOI

QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials

TL;DR: QUANTUM ESPRESSO as discussed by the authors is an integrated suite of computer codes for electronic-structure calculations and materials modeling, based on density functional theory, plane waves, and pseudopotentials (norm-conserving, ultrasoft, and projector-augmented wave).
Journal ArticleDOI

Unified Approach for Molecular Dynamics and Density-Functional Theory

TL;DR: In this article, a unified scheme combining molecular dynamics and density-functional theory is presented, which makes possible the simulation of both covalently bonded and metallic systems and permits the application of density functional theory to much larger systems than previously feasible.
Journal ArticleDOI

Phonons and related crystal properties from density-functional perturbation theory

TL;DR: In this paper, the current status of lattice-dynamical calculations in crystals, using density-functional perturbation theory, with emphasis on the plane-wave pseudopotential method, is reviewed.
Journal ArticleDOI

Advanced capabilities for materials modelling with Quantum ESPRESSO.

Paolo Giannozzi, +53 more
TL;DR: Recent extensions and improvements are described, covering new methodologies and property calculators, improved parallelization, code modularization, and extended interoperability both within the distribution and with external software.
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