来源：ACS PublicationsRelaxor ferroelectric crystals are cornerstone materials for electromechanical and electro-optic technologies, yet the antagonism between piezoelectric performance and optical transparency has persistently impeded device integration. Here, we demonstrate that Sm3+ doping in Pb(Mg1/3Nb2/3)O3–PbTiO3 (PMN-PT) single crystals shatters this conventional compromise, achieving an exceptional piezoelectric coefficient (d33 = 3500 pC/N) by [001]-poling and a large electro-optic coefficient (γc = 700 pm/V) by [110]-poling while retaining 70% optical transmittance across the visible-ne...
Release time:
2026
-
03
-
09
viewed：6
来源：ACS PublicationsA unique phenomenon in high-performance solid-state electrolytes of rare-earth halides is the strong dependence of ionic conductivity on the valence state anisotropy of the rare-earth elements, which potentially impedes ion transport. To probe the presence and effects of such anisotropy, the stable crystal structures, electronic structures, ionic conductivities, and Li-migration barriers in Li3YbCl6 ionic conductors with two space groups (Pna21/Pnma) have been investigated using a first-principles approach. The change in valence state is quantified by calculating the density...
Release time:
2026
-
03
-
06
viewed：10
来源：ACS PublicationsPiezocatalysis has emerged as a promising technology for environmental remediation by harnessing mechanical energy to drive redox reactions. In this study, Sm2O3-doped (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) solid solutions have been synthesized via a facile solid-state reaction to systematically investigate the effects of Sm3+ doping on the phase structure, defect chemistry, and piezocatalytic activity. Rietveld refinement, transmission electron microscopy, and Raman spectroscopy all confirm the coexistence of rhombohedral, orthorhombic, and tetragonal phases. The morphotropic ...
Release time:
2026
-
03
-
05
viewed：9
来源：ACS PublicationsYb vacancy color centers on diamond (110) surfaces are promising candidates for long-coherence solid-state qubits and scalable quantum networks. However, their performance is strongly affected by surface termination, where the mechanism of charge redistribution and its impact on defect dynamics remain unclear. Here, we combine first-principles calculations and machine-learning molecular dynamics (MLMD) to systematically study F-, H-, N-, and O-terminated surfaces. The results reveal that the electronegativity of the terminating atom governs interfacial charge rearrangement, ...
Release time:
2026
-
03
-
05
viewed：5