[HTML][HTML] Unveiling the structural origin to control resistance drift in phase-change memory materials

W Zhang, E Ma - Materials Today, 2020 - Elsevier
The global demand for data storage and processing is increasing exponentially. To deal
with this challenge, massive efforts have been devoted to the development of advanced …

Theoretical and experimental advances in high-pressure behaviors of nanoparticles

L Meng, TV Vu, LJ Criscenti, TA Ho, Y Qin… - Chemical …, 2023 - ACS Publications
Using compressive mechanical forces, such as pressure, to induce crystallographic phase
transitions and mesostructural changes while modulating material properties in …

[HTML][HTML] CP2K: An electronic structure and molecular dynamics software package-Quickstep: Efficient and accurate electronic structure calculations

TD Kühne, M Iannuzzi, M Del Ben, VV Rybkin… - The Journal of …, 2020 - pubs.aip.org
CP2K is an open source electronic structure and molecular dynamics software package to
perform atomistic simulations of solid-state, liquid, molecular, and biological systems. It is …

Design rules for phase‐change materials in data storage applications

D Lencer, M Salinga, M Wuttig - Advanced Materials, 2011 - Wiley Online Library
Phase‐change materials can rapidly and reversibly be switched between an amorphous
and a crystalline phase. Since both phases are characterized by very different optical and …

Preparation, characterization and thermal properties of micro-encapsulated phase change materials

L Pan, Q Tao, S Zhang, S Wang, J Zhang… - Solar Energy Materials …, 2012 - Elsevier
In this study, a novel microencapsulated phase change material (palmitic acid@ AlOOH)
was prepared using an in situ emulsion interfacial poly-condensation method. The resulting …

Distortion-triggered loss of long-range order in solids with bonding energy hierarchy

AV Kolobov, M Krbal, P Fons, J Tominaga, T Uruga - Nature chemistry, 2011 - nature.com
An amorphous-to-crystal transition in phase-change materials like Ge–Sb–Te is widely used
for data storage. The basic principle is to take advantage of the property contrast between …

Second generation Car–Parrinello molecular dynamics

TD Kühne - Wiley Interdisciplinary Reviews: Computational …, 2014 - Wiley Online Library
Computer simulation methods, such as Monte Carlo or molecular dynamics, are very
powerful theoretical techniques to provide detailed and essentially exact informations on …

Ab Initio Computer Simulation of the Early Stages of Crystallization: Application <?format ?>to Phase-Change Materials

TH Lee, SR Elliott - Physical Review Letters, 2011 - APS
By virtue of the ultrashort phase-transition time of phase-change memory materials, eg, Ge 2
Sb 2 Te 5, we successfully reproduce the early stages of crystallization in such a material …

First-principles study of crystalline and amorphous Ge2Sb2Te5 and the effects of stoichiometric defects

S Caravati, M Bernasconi, TD Kühne… - Journal of Physics …, 2009 - iopscience.iop.org
Based on ab initio molecular dynamics simulations, we investigated the structural, electronic
and vibrational properties of cubic and amorphous Ge 2 Sb 2 Te 5 (GST) phase change …

Thermal Effects on CH3NH3PbI3 Perovskite from Ab Initio Molecular Dynamics Simulations

MA Carignano, A Kachmar, J Hutter - The Journal of Physical …, 2015 - ACS Publications
We present a molecular dynamics simulation study of CH3NH3PbI3 based on forces
calculated from density functional theory. The simulations were performed on model systems …