Results 231 to 240 of about 9,222 (286)

Self‐Assembly of Bent‐Core Nematics in Nanopores

open access: yesSmall, EarlyView.
Bent‐core nematic liquid crystals like CB7CB exhibit tunable molecular organization and optical responses when confined in cylindrical nanochannels of anodic aluminum oxide and silica. The study investigates how confinement–from weak to strong–modulates phase behavior, revealing heliconical structures, paranematic states, and birefringence patterns ...
Andriy Z. Maksym   +8 more
wiley   +1 more source

High‐Performance of Piezoelectric and Ferroelectric PVDF ‐TrFE Based Composites Engineered by MWCNTs@BaTiO3 Heterostructure

open access: yesSmall, EarlyView.
During the polarization of MWCNTs@BaTiO3/PVDF‐TrFE composite films, due to the excellent conductivity of MWCNTs, the construction of MWCNTs@BaTiO3 heterostructure enhances the local electric field around BaTiO3 nanoparticles and facilitates easier switching of dipoles in both BaTiO3 and PVDF‐TrFE.
Kejun Shi   +4 more
wiley   +1 more source

La3+-induced (micro)structural changes and origin of the relaxor-like phase transition in ferroelectric lead barium niobate electroceramics

open access: green, 2014
Michel Venet   +6 more
openalex   +1 more source

Beyond Pristine Layers: Engineering van der Waals MPX3 Materials (M: Transition Metal, X: Chalcogen) via Defects, Adsorption, and Intercalation

open access: yesSmall Science, EarlyView.
This review highlights specific examples, demonstrating how the electronic and magnetic properties of transition metal phosphorus trichalcogenides (MPX3) can be systematically modified. Key approaches—including defect engineering, adsorption, alloying, and intercalation—are examined in detail.
Yuriy Dedkov, Elena Voloshina
wiley   +1 more source

Direct Observation of Intrinsic Spin–Layer Coupling and Robust Valley Polarization in Bilayer MoS2

open access: yesSmall Science, EarlyView.
This study experimentally demonstrates finite and even enhanced circular polarization in bilayer MoS2, despite its centrosymmetric 2H stacking, across all temperatures. The degree of circular polarization exceeds that of monolayers, attributed to spin–layer coupling and suppression of spin‐flip processes.
Yumin Sim   +5 more
wiley   +1 more source

BaTiO<sub>3</sub>-Based Electrocaloric Materials-Recent Progresses and Perspective. [PDF]

open access: yesMaterials (Basel)
Tang Y   +8 more
europepmc   +1 more source

Enhanced energy storage performance of (1-x)(BCT-BMT)-xBFO lead-free relaxor ferroelectric ceramics in a broad temperature range

open access: green, 2019
Mengxing Xu   +8 more
openalex   +2 more sources

Charge‐Trap Memory with Engineered Temporal Dynamics for Physically Integrated Reservoir Computing

open access: yesSmall Science, EarlyView.
A homogeneous PdSe2 charge‐trap memory‐based reservoir computing system is demonstrated via ultrafast photoexcitation defect engineering. Femtosecond laser‐treated devices with multilevel conductance and persistent retention are used as synapses in the readout layer, while pristine devices with short‐term plasticity serve as reservoir nodes.
Mengfan Wu   +13 more
wiley   +1 more source

Engineering polar nanoclusters for enhanced microwave tunability in ferroelectric thin films. [PDF]

open access: yesNat Commun
Ruan H   +8 more
europepmc   +1 more source

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