Perspectives on the theory of defects

J Spitaler, SK Estreicher - Frontiers in Materials, 2018 - frontiersin.org
Our understanding of defects in materials science has changed tremendously over the last
century. While 100 years ago they were often ignored by scientists, nowadays they are in the …

[HTML][HTML] On correlations between local chemistry, distortions and kinetics in high entropy nitrides: An ab initio study

GK Nayak, A Kretschmer, PH Mayrhofer, D Holec - Acta Materialia, 2023 - Elsevier
High entropy alloys (HEAs) have triggered significant scientific interest due to their unusual
structural stability combined with excellent mechanical and other functional properties …

Inherent toughness and fracture mechanisms of refractory transition-metal nitrides via density-functional molecular dynamics

DG Sangiovanni - Acta Materialia, 2018 - Elsevier
Hard refractory transition-metal nitrides possess unique combinations of outstanding
mechanical and physical properties, but are typically brittle. Recent experimental results …

Electrodeposited epitaxial Cu (100) on Si (100) and lift-off of single crystal-like Cu (100) foils

CM Hull, JA Switzer - ACS applied materials & interfaces, 2018 - ACS Publications
A two-step potential electrodeposition technique is described which gives epitaxial films of
Cu (100) on n-Si (100). Nucleation of epitaxial seeds occurs at− 1.5 VAg/AgCl, whereas the …

Ab initio simulations of the surface free energy of TiN(001)

A Forslund, X Zhang, B Grabowski, AV Shapeev… - Physical Review B, 2021 - APS
The temperature dependence of the surface free energy of the industrially important TiN
(001) system has been investigated by means of an extended two-stage upsampled …

Computational observation of the strengthening of Cu/TiN metal/ceramic interfaces by sub-nanometer interlayers and dopants

ASM Miraz, WJ Meng, BR Ramachandran… - Applied Surface …, 2021 - Elsevier
First principles density functional theory calculations were used to explore the enhancement
of the structural integrity of Cu/TiN metal/ceramic interfaces by substitutional do** of the …

Impact of d-states on transition metal impurity diffusion in TiN

GK Nayak, D Holec, M Zelený - Scientific Reports, 2023 - nature.com
In this work, we studied the energetics of diffusion-related quantities of transition-metal
impurities in TiN, a prototype ceramic protective coating. We use ab-initio calculations to …

Point defects at the Σ5 (012)[100] grain boundary in TiN and the early stages of Cu diffusion: An ab initio study

MN Popov, AS Bochkarev, VI Razumovskiy… - Acta Materialia, 2018 - Elsevier
Diffusion of impurities along grain boundaries of compound materials is of high relevance for
multiple practical applications. In this work, we perform a case study of Cu-impurity diffusion …

Modeling of Diffusion and Incorporation of Interstitial Oxygen Ions at the TiN/SiO2 Interface

J Cottom, A Bochkarev, E Olsson, K Patel… - … Applied Materials & …, 2019 - ACS Publications
Silica-based resistive random access memory devices have become an active research
area due to complementary metal–oxide–semiconductor compatibility and recent dramatic …

Nonequilibrium ab initio molecular dynamics determination of Ti monovacancy migration rates in TiN

D Gambino, DG Sangiovanni, B Alling, IA Abrikosov - Physical Review B, 2017 - APS
We use the color diffusion (CD) algorithm in nonequilibrium (accelerated) ab initio molecular
dynamics simulations to determine Ti monovacancy jump frequencies in NaCl-structure …