Results 241 to 250 of about 7,029,328 (321)

Large Fermi Surface of Heavy Electrons at the Border of Mott Insulating State in NiS2. [PDF]

open access: yesSci Rep, 2016
Friedemann S   +9 more
europepmc   +1 more source

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

Anomalous Phonon Softening with Inherent Strain in Wrinkled Monolayer WSe2

open access: yesAdvanced Materials, EarlyView.
This study introduces the first discovery of a new local strain indicator, A2′′(Γ)$A_2^{^{\prime\prime}}( \Gamma )$ mode, for monolayer WSe2‐based excitonic applications including single photon emitter by using tip‐enhanced Raman spectroscopy. The correlative investigation with density functional perturbation theory provides the origin of the anomalous
Dong Hyeon Kim   +12 more
wiley   +1 more source

Advancements in Carbon‐Based Piezoelectric Materials: Mechanism, Classification, and Applications in Energy Science

open access: yesAdvanced Materials, EarlyView.
Carbon‐based piezoelectric materials are systematically categorized based on their structural and functional properties. The mechanisms of stress‐induced charge transfer are elucidated, and their applications are explored across three key domains: piezoelectric catalysis for energy conversion and environmental remediation, piezoelectric biomedical ...
Mude Zhu   +3 more
wiley   +1 more source

Fermi Surface Topology of Bi_{2}Sr_{2}CaCu_{2}O_{8+d} at hν=33eV: hole or electron-like?

open access: green, 2000
A. D. Gromko   +4 more
openalex   +2 more sources

Van der Waals Integration of 1D Nb2Pd3Se8 and 2D WSe2 for Gate‐Tunable In‐Sensor Image Processing

open access: yesAdvanced Materials, EarlyView.
We developed self‐powered photodetectors for in‐sensor image processing by integrating high‐quality 1D Nb2Pd3Se8 with 2D WSe2. The type‐I junction and a 1D van der Waals interfaceenable gate‐tunable switching between n‐p and n‐n+ configurations, yieldingbroadband bi‐directional photoresponse.
Vu Khac Dat   +14 more
wiley   +1 more source

Unraveling the Complexity of the Dzyaloshinskii–Moriya Interaction in Layered Magnets: The Full Magnitude and Chirality Control

open access: yesAdvanced Materials, EarlyView.
In layered magnets, the atomistic Dzyaloshinskii–Moriya interaction (DMI) depends critically not only on the orbital occupancy of the interface layer but also on the sequence of the atomic layers. The effect can be understood by analyzing the contributions of different orbitals to DMI.
Khalil Zakeri   +3 more
wiley   +1 more source

All‐Heat Control of Magnetization Dynamics on Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
Heat dissipation in nanomagnetic devices mediated by femtosecond laser excitation constitutes one of the pressing challenges toward energy‐efficient information communication technologies. Here it is shown that heat and magnetization play together to determine the ultrafast spin dynamics of van der Waals magnets across any substrates and magnet ...
Sumit Haldar   +3 more
wiley   +1 more source

Nonlinear Optical Response in Layer‐Stacked Gallenene with Ferroelectric Polarization

open access: yesAdvanced Materials, EarlyView.
Liquid metals are utilized in applications ranging from soft robotics to conductive inks, owing to their physical properties providing distinct mechanical, electrical, and thermal advantages. This work uses classical material science techniques to characterize ferroelectric polarization in supercooled liquid gallium and utilizes second harmonic ...
Muhammad Yunusa   +17 more
wiley   +1 more source

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