Lattice instabilities in metallic elements

G Grimvall, B Magyari-Köpe, V Ozoliņš… - Reviews of Modern Physics, 2012 - APS
Most metallic elements have a crystal structure that is either body-centered cubic (bcc), face-
centered close packed, or hexagonal close packed. If the bcc lattice is the …

High‐pressure elastic properties of major materials of Earth's mantle from first principles

BB Karki, L Stixrude… - Reviews of Geophysics, 2001 - Wiley Online Library
The elasticity of materials is important for our understanding of processes ranging from brittle
failure, to flexure, to the propagation of elastic waves. Seismologically revealed structure of …

First-principles elastic constants for the hcp transition metals Fe, Co, and Re at high pressure

G Steinle-Neumann, L Stixrude, RE Cohen - Physical Review B, 1999 - APS
The elastic constant tensors for the hcp phases of three transition metals (Co, Re, and Fe)
are computed as functions of pressure using the linearized augmented plane wave method …

Systematic electronic-structure investigation of substitutional impurity diffusion and flux coupling in bcc iron

L Messina, M Nastar, N Sandberg, P Olsson - Physical Review B, 2016 - APS
The diffusion properties of a wide range of impurities (transition metals and Al, Si, and P) in
ferritic alloys are here investigated by means of a combined ab initio–atomic diffusion theory …

KineCluE: A kinetic cluster expansion code to compute transport coefficients beyond the dilute limit

T Schuler, L Messina, M Nastar - Computational Materials Science, 2020 - Elsevier
This paper introduces the KineCluE code that implements the self-consistent mean-field
theory for clusters of finite size. Transport coefficients are obtained as a sum over cluster …

Tight-binding potential for atomistic simulations of carbon interacting with transition metals: Application to the Ni-C system

H Amara, JM Roussel, C Bichara, JP Gaspard… - Physical Review B …, 2009 - APS
We present a tight-binding potential for transition metals, carbon, and transition-metal
carbides, which has been optimized through a systematic fitting procedure. A minimal basis …

Tight-binding computations of elastic anisotropy of Fe, Xe, and Si under compression

RE Cohen, L Stixrude, E Wasserman - Physical Review B, 1997 - APS
A tight-binding total-energy model parametrized to first-principles linearized augmented
plane-wave computations is applied to study elasticity and elastic anisotropy in Fe, Xe, and …

First-principles thermal equation of state and thermoelasticity of hcp Fe at high pressures

X Sha, RE Cohen - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We investigate the equation of state and elastic properties of hcp iron at high pressures and
high temperatures using the first-principles linear-response linear-muffin-tin-orbital method …

Ab initio study of self-interstitials in hcp-Zr

F Willaime - Journal of nuclear materials, 2003 - Elsevier
The formation energies of self-interstitials in hcp-zirconium have been obtained from first
principles electronic structure calculations in the framework of the density functional theory …

Model potential based on tight-binding total-energy calculations for transition-metal systems

J Guevara, AM Llois, M Weissmann - Physical Review B, 1995 - APS
A semiempirical model potential to simulate properties of fcc transition metals is proposed.
The attractive part of the potential has been obtained from a tight-binding Hamiltonian that …