Atomic-resolution electron microscopy of nanoscale local structure in lead-based relaxor ferroelectrics

A Kumar, JN Baker, PC Bowes, MJ Cabral, S Zhang… - Nature materials, 2021 - nature.com
Relaxor ferroelectrics, which can exhibit exceptional electromechanical coupling, are some
of the most important functional materials, with applications ranging from ultrasound imaging …

Dielectric properties and electrocaloric effect of high-entropy (Na0. 2Bi0. 2Ba0. 2Sr0. 2Ca0. 2) TiO3 ceramic

Y Pu, Q Zhang, R Li, M Chen, X Du, S Zhou - Applied Physics Letters, 2019 - pubs.aip.org
Single-phase homogeneous (Na 0.2 Bi 0.2 Ba 0.2 Sr 0.2 Ca 0.2) TiO 3 powder with high
configurational entropy was synthesized by using a solid-state method. Calculations of …

Phase stability and distortion in high-entropy oxides

G Anand, AP Wynn, CM Handley, CL Freeman - Acta Materialia, 2018 - Elsevier
The present investigation demonstrates how configurational entropy stabilises rock-salt type
single phase multi-component solid solution oxides. Classical simulations have been used …

Oxidation behaviours of high-entropy transition metal carbides in 1200° C water vapor

Y Tan, C Chen, S Li, X Han, J Xue, T Liu, X Zhou… - Journal of Alloys and …, 2020 - Elsevier
Abstract High-entropy (Zr, Ti, Hf, Nb, Ta) C ceramic with single-phase rock salt structure was
prepared by spark plasma sintering and their oxidation behavior was investigated at 1200° …

Order-Disorder Ferroelectric Transition of Strained

S Salmani-Rezaie, K Ahadi, WM Strickland… - Physical Review Letters, 2020 - APS
SrTiO 3 is an incipient ferroelectric that is believed to exhibit a prototype displacive, soft
mode ferroelectric transition when subjected to mechanical stress or alloying. We use high …

Atomic-resolution visualization of distinctive chemical mixing behavior of Ni, Co, and Mn with Li in layered lithium transition-metal oxide cathode materials

P Yan, J Zheng, D Lv, Y Wei, J Zheng… - Chemistry of …, 2015 - ACS Publications
Capacity and voltage fading of layered structured cathode based on lithium transition-metal
oxide is closely related to the lattice position and migration behavior of the transition-metal …

[HTML][HTML] Direct observation of cation diffusion driven surface reconstruction at van der Waals gaps

W Cui, W Lin, W Lu, C Liu, Z Gao, H Ma, W Zhao… - Nature …, 2023 - nature.com
Weak interlayer van der Waals (vdW) bonding has significant impact on the surface/interface
structure, electronic properties, and transport properties of vdW layered materials …

Understanding ferroelectric Al: HfO2 thin films with Si-based electrodes for 3D applications

K Florent, S Lavizzari, M Popovici, L Di Piazza… - Journal of Applied …, 2017 - pubs.aip.org
Ferroelectric hafnium oxide is a promising candidate for logic and memory applications as it
maintains excellent ferroelectric properties at nm-size ensuring compatibility with state of the …

[HTML][HTML] Mechanisms governing metal vacancy formation in BaTiO3 and SrTiO3

JN Baker, PC Bowes, JS Harris, DL Irving - Journal of Applied Physics, 2018 - pubs.aip.org
Barium titanate (BTO) and strontium titanate (STO) are often treated as close analogues, and
models of defect behavior are freely transferred from one material to the other with only …

The influence of local distortions on proton mobility in acceptor doped perovskites

J Ding, J Balachandran, X Sang, W Guo… - Chemistry of …, 2018 - ACS Publications
Optimizing proton conduction in solids remains the most promising solution for achieving
intermediate temperature (∼ 750–1000 K) solid oxide fuel cell devices, and enabling …