Results 211 to 220 of about 5,467,977 (315)

Topological-spectral fusion of secondary acoustic echoes for identity recognition in non-line-of-sight environments. [PDF]

Sci Rep
Olgun N.
europepmc   +1 more source

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Development of sustainable natural waste-reinforced epoxy composites for potential building applications. [PDF]

RSC Adv
Abas FO, Abass RU, Azeez Batcha A, Al-Sarraf MA, Bachtiar D, Siregar JP, Cionita T, Palanisamy S, Azizjanov K, Sundararajan K, Alagarsamy A, Belay M.   +11 more
europepmc   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

Advanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye, Bangzhi Ge, Yuan Yu, Chongjian Zhou   +3 more
wiley   +1 more source

Multidimensional spectro-temporal imaging of exciton dynamics under propagating acoustic strain in two-dimensional semiconductors. [PDF]

Sci Adv
Takahashi Y, Yamamoto T, Kanzawa H, Maezawa K, Kumazaki H, Kato YK, Watanabe S, Fujii S.   +7 more
europepmc   +1 more source

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes

Advanced Science, EarlyView.
Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Shuchang Zhang, Yi He, Guojie Luo, Jie Huang, Pak San Yip, Haoyu Cui, Wanglinhan Zhang, Zijian Wang, Lin Ye, Yang Lu, Zhongqing Su, Yehai Li   +11 more
wiley   +1 more source

Sustainable Sound Absorption: A Critical Review of Material Innovation and Geometry-Driven Design. [PDF]

Polymers (Basel)
Tayari F, Silva R, Godinho B, Pinto P, Cardoso I, Brilhante T, Freitas V, Ribeiro R, Ferreira A, Gama N.   +9 more
europepmc   +1 more source

Efficient Hot Carrier Management in Lead Halide Perovskite Micro‐Disks Revealed by Super‐Diffusive Migration

Advanced Science, EarlyView.
Hot‐carrier transport in metal halide perovskites is investigated using spatiotemporally‐resolved photoluminescence microscopy. Mesa‐shaped MAPbBr3 microdisks exhibit anomalous super‐diffusive carrier propagation on nanosecond timescales, driven by hot‐carrier stabilization and strong carrier–phonon coupling.
Nithin Pathoor, Shun Omagari, Martin Vacha   +2 more
wiley   +1 more source

Linking ISO Dynamic Stiffness and Acoustic Modal Identification for FEM-Oriented Modelling of Elasticized Expanded Polystyrene. [PDF]

Materials (Basel)
Nering K, Nering K, Kozak-Jagieła E.
europepmc   +1 more source

Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe

Advanced Science, EarlyView.
A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang, Yang Li, Jianguo Chen, Kai Guo, Jun Luo, Jiye Zhang   +5 more
wiley   +1 more source