Results 81 to 90 of about 11,325 (265)

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

open access: yesAdvanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag   +8 more
wiley   +1 more source

Impact of Pt grain size on ferroelectric properties of zirconium hafnium oxide by chemical solution deposition. [PDF]

open access: yesNano Converg, 2022
Nguyen AH   +8 more
europepmc   +1 more source

Reconfigurable Ferroelectric‐Like Two‐Dimensional Electron Gas at Room Temperature

open access: yesAdvanced Materials, EarlyView.
We demonstrate the realization of a novel ferroelectric‐like two‐dimensional electron gas (2DEG) based on the epitaxial interface between SrO‐terminate SrTiO3 and ferroeletric KNb0.5Na0.5O3${\rm KNb}_{0.5}{\rm Na}_{0.5}{\rm O}_3$ thin films. We show nonvolatile control of the transport properties enabling spatially reconfigurable devices in which ...
Martando Rath   +16 more
wiley   +1 more source

Improved Ferroelectric Properties in Hf0.5Zr0.5O2 Thin Films by Microwave Annealing. [PDF]

open access: yesNanomaterials (Basel), 2022
Zhao B   +7 more
europepmc   +1 more source

Chiral Altermagnetic Magnetoelectrics

open access: yesAdvanced Materials, EarlyView.
In this work, we introduce a previously unexplored class of magnetoelectric materials, which we term chiral altermagnetic magnetoelectrics, in which structural chirality and Néel‐vector‐driven polarization are intrinsically coupled in nonpolar altermagnetic systems.
Chengwu Xie   +8 more
wiley   +1 more source

Artificial intelligence-driven phase stability evaluation and new dopants identification of hafnium oxide-based ferroelectric materials

open access: yesnpj Computational Materials
In this work, a multi-stage material design framework combining machine learning techniques with density functional theory is established to reveal the mechanism of phase stabilization in HfO2 based ferroelectric materials.
Shaoan Yan   +13 more
doaj   +1 more source

Influence of the Template Layer on the Structure and Ferroelectric Properties of PbZr0.52Ti0.48O3 Films. [PDF]

open access: yesACS Omega, 2022
Lucke P   +5 more
europepmc   +1 more source

Controlling Radiative Phonons in the van der Waals Ferroelectric NbOI2

open access: yesAdvanced Materials, EarlyView.
Using a simple mirror geometry, this work demonstrates local‐density‐of‐optical‐states control of THz phonon emission in van der Waals ferroelectric NbOI2. By engineering the photonic environment, the phonon Q‐factor, linewidth, peak frequency, and emission intensity are reversibly tuned by over an order of magnitude, revealing radiative phonons as ...
Baolong Zhang   +5 more
wiley   +1 more source

Coupling of electronic transition to ferroelectric order in a 2D semiconductor

open access: yesNature Communications
A ferroelectric material often exhibits a soft transverse optical (TO) phonon mode which governs its phase transition. Charge coupling to this ferroelectric soft mode may further mediate emergent physical properties, including superconductivity and ...
Chun-Ying Huang   +18 more
doaj   +1 more source

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