Results 121 to 130 of about 2,160,501 (327)

Optically Switchable Fluorescence Enhancement at Critical Interparticle Distances

open access: yesAdvanced Theory and Simulations, EarlyView.
In this work, we present the results of a complete FDTD (Finite Difference Time Domain) model specifically tailored for the precise determination of critical interparticle distances yielding observable fluorescence enhancement. We further report an optical switch applied on a metal nanoparticle to actively control the radiative decay rate of a closely ...
Arda Gulucu, Emre Ozan Polat
wiley   +1 more source

Chiral Structure of Baryon and Scalar Tetraquark Currents

open access: yesEPJ Web of Conferences, 2014
We investigate chiral properties of local fields of baryons consisting of three quarks with flavor SU(3) symmetry. We construct explicitly independent local threequark fields belonging to definite Lorentz and flavor representations.
Chen Hua-Xing   +2 more
doaj   +1 more source

Density Functional Theory Study on the Impact of External Magnetic Fields on the Photocatalytic Properties of Metal‐Doped Titanium Dioxide

open access: yesAdvanced Theory and Simulations, EarlyView.
This study reveals how external magnetic fields enhance photocatalysis in transition metal‐doped anatase TiO2. Using DFT+U, it analyzes band structure, charge distribution, light absorption, and spin density, providing strong evidence for a spin polarization‐driven magnetic field‐photocatalysis coupling mechanism. Abstract Home‐made pure TiO2, Fe/TiO2,
Pengsheng Liu, Xiaoan Mao
wiley   +1 more source

Near Room‐Temperature Ferromagnetic Phase Achieved in 4d Ruthenate via Interfacial Ferrimagnetic Coupling and Octahedral Rotation Engineering

open access: yesAdvanced Science, EarlyView.
Transition metal oxides combining strong spin‐orbit coupling, near‐room‐temperature ferromagnetism, and high conductivity are rare. A Ca0.5Sr0.5RuO3 interfacial phase between LaMnO3 layers has all these features, high Tc, enhanced magnetization, and reduced coercivity.
Mengqin Wang   +10 more
wiley   +1 more source

Theory of Complex Gravitation

open access: yesReports in Advances of Physical Sciences
Here, we present a new physical quantity with the aim of unifying the structure of physics. The basic assumption starts with a reduction of all the natural forces into a single force.
Borros M. Arneth
doaj   +1 more source

Sparse Nanocrystals Enable Ultra‐Low Coercivity and Remarkable Mechanical Robustness in High‐Entropy Amorphous Alloy

open access: yesAdvanced Science, EarlyView.
An order modulation strategy is introduced to overcome trade‐off between mechanical and magnetic properties by constructing an amorphous‐nanocrystalline transitional structure in a ferromagnetic HEA system. This enable the resultant alloys to combine an ultra‐low coercivity of 0.3 A m−1 with a remarkable mechanical toughness, thereby achieving a ...
Lichen Liu   +8 more
wiley   +1 more source

Microwave‐Driven Dielectric‐Magnetic Regulation of Graphite@α‐MnO2 Toward Enhanced Electromagnetic Wave Absorption

open access: yesAdvanced Science, EarlyView.
This study presents a microwave‐activated composite integrating expanded graphite with α‐MnO2 nanowires, engineered to synergistically optimize dielectric and magnetic properties. The innovative microwave‐driven process enables rapid structural transformation, yielding ultrathin, scalable electromagnetic wave‐absorbing films.
Junyu Lu   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy