Results 131 to 140 of about 276,626 (313)
Giant Hall Effect in Nonmagnetic Granular Metal Films [PDF]
, 2001 X. X. Zhang +5 more
openalex +1 more source
Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz
Advanced 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
Quantum Anomalous Layer Hall Effect in the Topological Magnet MnBi2Te4 [PDF]
, 2022 Wenbo Dai +4 more
openalex +1 more source
Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics
Advanced 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
Компьютерная оптикаWe analyze the sharp focusing of the superposition of a vortex laser beam with topological charge n and linear polarization and a plane wave with the same linear polarization directed along the horizontal axis.
V.V. Kotlyar +3 more
doaj +1 more source
Advanced Materials, EarlyView.We demonstrate successful fabrication of high‐quality α‐Sn/β‐Sn planar nanostructures with arbitrary shapes by focused laser irradiation on topological Dirac semimetal α‐Sn thin films. The irradiated regions transform into atomically smooth, superconducting β‐Sn with a critical temperature of 3.7 K.
Le Duc Anh +5 more
wiley +1 more source
Observation of Topological Chirality Switching Induced Freezing of a Skyrmion Crystal
Advanced Materials, EarlyView.Using Lorentz Transmission electron microscopy, it is shown that in the insulating van der Waals ferromagnet, CrBr3, a magnetic field can cause Bloch skyrmionic bubbles to spontaneously switch their chirality. As achiral type‐II bubbles are an intermediate state, the bubbles rapidly elongate and shrink when switching, thereby inducing a freezing of the
John Fullerton +10 more
wiley +1 more source
Ultrastable Zn3N2 Thin Films via Integration of Amorphous GaN Protection Layers
Advanced Materials InterfacesZinc nitride (Zn3N2) is a promising semiconductor for a range of optoelectronic and energy conversion applications, offering a direct bandgap of 1.0 eV, large carrier mobilities, and abundant constituent elements.
Elise Sirotti +2 more
doaj +1 more source
Evidence of a Phonon Hall Effect in the Kitaev Spin Liquid Candidate $\alpha$-RuCl$_3$. [PDF]
, 2021 Étienne Lefrançois +11 more
openalex +1 more source