Results 101 to 110 of about 9,648 (308)

Predominant electronic order parameter for structural chirality: Role of spinless electronic toroidal multipoles in Te and Se

open access: yesPhysical Review Research
We discuss predominant order parameters for structural chirality and demonstrate that time-reversal-even axial quadrupole plays a key role in stabilizing a chiral structure.
Rikuto Oiwa, Hiroaki Kusunose
doaj   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz

open access: yesAdvanced Materials, EarlyView.
Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim   +8 more
wiley   +1 more source

CONNECTING THE FORMATION OF STARS AND PLANETS. II: COUPLING THE ANGULAR MOMENTUM OF STARS WITH THE ANGULAR MOMENTUM OF PLANETS

open access: bronze, 2021
Lauren Melissa Flor Torres   +4 more
openalex   +1 more source

Angular--Momentum--Resolved Aharonov--Bohm Coupling Energy

open access: yes
The Aharonov--Bohm (AB) effect is conventionally interpreted as a phase shift acquired by charged particles encircling a flux, with no fields acting locally along their paths. Here we show that a confined Dirac electron exhibits a distinct AB \emph{coupling energy} arising from a \emph{local current--potential interaction}, whose form depends on the ...
Gao, Ju, Shen, Fang
openaire   +2 more sources

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Ultrafast Terahertz Field Control of the Emergent Magnetic and Electronic Interactions at Oxide Interfaces

open access: yesAdvanced Materials, EarlyView.
Intense single‐cycle THz electric‐field pulses enable ultrafast control of emergent electronic and magnetic states at LaNiO3/CaMnO3 interfaces. Combined X‐ray and optical probes reveal sub‐picosecond demagnetization driven by spin‐polarized currents and slower magnetoelastic dynamics linked to spin–lattice coupling.
Abigail M. Derrico   +15 more
wiley   +1 more source

Spin–Orbit Coupling of the Ellipsoidal Secondary in a Binary Asteroid System

open access: yesThe Astronomical Journal
In our solar system, spin–orbit coupling is a common phenomenon in binary asteroid systems, where the mutual orbits are no longer invariant due to exchange of angular momentum between translation and rotation.
Hanlun Lei
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Collisions and dynamics of particles with magnetic dipole moment and electric charge near magnetized rotating Kerr black holes

open access: yesEuropean Physical Journal C: Particles and Fields
Analysis of test magnetized and charged particles around black holes immersed in external magnetic fields may help to explain the observed astrophysical phenomena related to black holes, such as the acceleration of particles up to high energies.
Shokhzod Jumaniyozov   +4 more
doaj   +1 more source

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