Author

T. Lookman

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Sep 2026

Anisotropic precursor behavior in LiTaO3: Polar coherence at ultrahigh temperatures without ferroelasticity

We report the persistence of the converse piezoelectric effect to exceptionally high temperatures in ferroelectric congruent LiTaO3 single crystals. Resonant piezoelectric spectroscopy reveals a strong and stable piezoelectric response up to temperatures approaching the ferroelectric transition (Tc = 855 K), demonstrat...

Chun-Han Li, Xiang-Dong Ding, Xiao-Ming Chen et al. · Applied Physics Letters · 0 citations

Open access Aug 2026

Four-phonon scattering and coherent heat transport in ultrawide-bandgap SrSnO3

SrSnO3 is a promising ultrawide-bandgap perovskite oxide whose thermal transport is governed by structural distortions and anharmonic lattice dynamics. Here, we investigate the lattice thermal conductivity (κL) of orthorhombic and cubic SrSnO3 within a unified first-principles framework combining self-consistent phonon...

Xue-Jie Li, Xiaoying Wang, Sheng-Ying Yue et al. · Applied Physics Letters · 1 citation

Open access Sep 2026

Fusing Direct and Indirect Measurements Through Multi‐Fidelity Learning For Accelerated Electrocaloric Materials Discovery

ABSTRACT The data‐driven discovery of high‐performance electrocaloric (EC) materials is challenged by sparse direct measurements and systematic discrepancies between direct and indirect measurements, resulting in heterogeneous datasets with varying fidelity levels. Here, a co‐kriging‐based multi‐fidelity learning frame...

Bo Wang, P. Dang, Yuan Tian et al. · Advancement of science · 0 citations