Results 61 to 70 of about 12,636 (184)
Symmetry‐Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies
Advanced Science, EarlyView.A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Jie Yang +14 more
wiley +1 more source
SPECTRAL ANALYSIS OF MOIRÉ IMAGES [PDF]
, 1997 The signal-to-noise ratio of moiré images is quite low. Obtaining useful information from an image can often be probiematic, since the contrast of the grid giving rise to the moiré phenomena is similar to the contrast of the moiré ...
Antal, Ákos, Ölveczky, B.
core +1 more source
Plasmons in graphene moiré superlattices [PDF]
, 2015 Moiré patterns are periodic superlattice structures that appear when two crystals with a minor lattice mismatch are superimposed. A prominent recent example is that of monolayer graphene placed on a crystal of hexagonal boron nitride.
Wang, H +10 more
core +1 more source
Probing Type‐II Multiferroicity in Monolayer NiBr2
Advanced Science, EarlyView.Type‐II multiferroicity is demonstrated in monolayer NiBr2. Scanning tunneling microscopy resolves ferroelectric polarization arising from non‐collinear magnetic order, and reciprocal control with electric and magnetic fields confirms intrinsic magnetoelectric coupling.
Aleš Cahlík +7 more
wiley +1 more source
Nature CommunicationsThe moiré potential serves as a periodic quantum confinement for optically generated excitons, creating spatially ordered zero-dimensional quantum systems. However, a broad emission spectrum resulting from inhomogeneity among moiré potentials hinders the
Haonan Wang +6 more
doaj +1 more source
Advanced Science, EarlyView.As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee +3 more
wiley +1 more source
Phonon Renormalization in Reconstructured MoS2 Moiré Superlattices
, 2021 In moiré crystals formed by stacking van der Waals materials, surprisingly diverse correlated electronic phases and optical properties can be realized by a subtle change in the twist angle.
Taniguchi, Takashi +17 more
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Advanced Science, EarlyView.Simultaneous two‐mode Raman thermometry reveals strong in‐plane anisotropic thermal conductivity and thermal expansion coefficients in low‐symmetry few‐layer ReS2. By decoupling thermal transport along the crystallographic a‐ and b‐axes within a single optical configuration, this study provides robust experimental evidence and ab initio theoretical ...
Manab Mandal +9 more
wiley +1 more source
Enhancing Quasi‐Two‐Dimensional Electronic Structure in Bi2O2Se via Chlorine Substitution
Advanced Science, EarlyView.We demonstrate chlorine substitution as an effective strategy to transform Bi2O2Se into an exfoliatable van der Waals superlattice. Key electronic band feature, including indirect bandgap, effective mass is well preserved, while the 2D character of the system is sufficiently enhanced.
Yong‐Zhen Jiang +19 more
wiley +1 more source
Controllable Superconductivity in Suspended NbSe2
Advanced Electronic Materials, EarlyView.Suspended NbSe2${\rm NbSe}_2$ provides two complementary routes for controlling superconducting transport. Gate‐driven deformation strains the suspended crystal and tunes its critical temperature and current. Weak thermal anchoring enhances thermal feedback, contributing to multistep hysteresis and negative differential resistance.
Ruihuan Fang +14 more
wiley +1 more source