Results 231 to 240 of about 205,236 (293)

Room‐Temperature Antiferroelectricity in Titanite (CaTiSiO5) Thin Films

open access: yesAdvanced Electronic Materials, EarlyView.
This study reports the first fabrication of titanite films featuring 1D chains of oxygen octahedra, along with the first observation of their antiferroelectric behavior at room temperature. A field‐induced ferroelectric phase is observed at ∼430 kV/cm, which is not reported in bulk titanite.
Weirong Yang   +3 more
wiley   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

open access: yesAdvanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe   +4 more
wiley   +1 more source

Gaps and ways forward in atmospheric blocking and extreme weather research. [PDF]

open access: yesNat Commun
Wang L   +9 more
europepmc   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

open access: yesAdvanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang   +9 more
wiley   +1 more source

Emergent Spin Fluctuation and Structural Metastability in Self‐Intercalated Cr1+xTe2${\rm Cr}_{1+x}{\rm Te}_2$ Compounds

open access: yesAdvanced Electronic Materials, EarlyView.
Metastable superstructure and emergent spin fluctuation in self‐intercalated Cr1+xTe2${\rm Cr}_{1+x}{\rm Te}_2$ ABSTRACT Intercalated van der Waals (vdW) magnetic materials host unique magnetic properties due to the interplay of competing interlayer and intralayer exchange couplings, which depend on the intercalant concentration within the van der ...
Clayton Conner   +15 more
wiley   +1 more source

Rainfall sustains multiyear La Niña. [PDF]

open access: yesNat Commun
Tian F, Zhang RH, Liu C, Guan C.
europepmc   +1 more source

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