The physical significance of imaginary phonon modes in crystals

I Pallikara, P Kayastha, JM Skelton… - Electronic …, 2022 - iopscience.iop.org
The lattice vibrations (phonon modes) of crystals underpin a large number of material
properties. The harmonic phonon spectrum of a solid is the simplest description of its …

Phonons and related crystal properties from density-functional perturbation theory

S Baroni, S De Gironcoli, A Dal Corso… - Reviews of modern Physics, 2001 - APS
This article reviews the current status of lattice-dynamical calculations in crystals, using
density-functional perturbation theory, with emphasis on the plane-wave pseudopotential …

Electronic structure, properties, and phase stability of inorganic crystals: A pseudopotential plane‐wave study

V Milman, B Winkler, JA White… - … Journal of Quantum …, 2000 - Wiley Online Library
Recent developments in density functional theory (DFT) methods applicable to studies of
large periodic systems are outlined. During the past three decades, DFT has become an …

Room-Temperature Ferromagnetism in Two-Dimensional Fe2Si Nanosheet with Enhanced Spin-Polarization Ratio

Y Sun, Z Zhuo, X Wu, J Yang - Nano letters, 2017 - ACS Publications
Searching experimental feasible two-dimensional (2D) ferromagnetic crystals with large spin-
polarization ratio, high Curie temperature and large magnetic anisotropic energy is one key …

Vibrational thermodynamics of materials

B Fultz - Progress in Materials Science, 2010 - Elsevier
The literature on vibrational thermodynamics of materials is reviewed. The emphasis is on
metals and alloys, especially on the progress over the last decade in understanding …

The SIESTA method; developments and applicability

E Artacho, E Anglada, O Diéguez… - Journal of Physics …, 2008 - iopscience.iop.org
Recent developments in and around the SIESTA method of first-principles simulation of
condensed matter are described and reviewed, with emphasis on (i) the applicability of the …

The effect of lattice vibrations on substitutional alloy thermodynamics

A Van De Walle, G Ceder - Reviews of Modern Physics, 2002 - APS
A long-standing limitation of first-principles calculations of substitutional alloy phase
diagrams is the difficulty in accounting for lattice vibrations. A survey of the theoretical and …

A high-throughput framework for lattice dynamics

Z Zhu, J Park, H Sahasrabuddhe, AM Ganose… - npj Computational …, 2024 - nature.com
We develop an automated high-throughput workflow for calculating lattice dynamical
properties from first principles including those dictated by anharmonicity. The pipeline …

Phonon dispersion measured directly from molecular dynamics simulations

LT Kong - Computer Physics Communications, 2011 - Elsevier
A method to measure the phonon dispersion of a crystal based on molecular dynamics
simulation is proposed and implemented as an extension to an open source classical …

Picoperovskites: the smallest conceivable isolated halide perovskite structures formed within carbon nanotubes

RJ Kashtiban, CE Patrick, Q Ramasse… - Advanced …, 2023 - Wiley Online Library
Halide perovskite structures are revolutionizing the design of optoelectronic materials,
including solar cells, light‐emitting diodes, and photovoltaics when formed at the quantum …