Results 91 to 100 of about 42,188 (232)

Substitutional Sulfur and Its Vibrational Fingerprints in Sb2Se3

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
The microscopic configurations of sulfur incorporated into the Sb2$_2$Se3$_3$ lattice are studied by combining infrared absorption spectroscopy with density functional theory. Substitutional SSe$_{\mathrm{Se}}$ defects are identified as the origin of four distinct sulfur‐related local vibrational modes at 249, 273, 283, and 312 cm−1$^{-1}$.
Frank Herklotz   +6 more
wiley   +1 more source

Optical vortices in six-wave mixing [PDF]

open access: yes, 2014
Andrews, David L.   +2 more
core   +1 more source

Digital Twin Simulations Toolbox of the Nitrogen‐Vacancy Center in Diamond

open access: yesAdvanced Quantum Technologies, EarlyView.
The Nitrogen‐vacancy (NV) center in diamond is a key platform within quantum technologies. This work introduces a Python based digital‐twin of the NV, where the spin dynamics of the system is simulated without relying on commonly used approximations, such as the adoption of rotating frame. The digital‐twin is validated through three different examples,
Lucas Tsunaki   +3 more
wiley   +1 more source

Quantum Inspired Universal Analog Computation Based on Circuits

open access: yesAdvanced Quantum Technologies, EarlyView.
We propose an analog scheme of classical circuit for universal quantum computation. The information is encoded using correlated electrical signals, and the number of the basic computing components employed in our circuit design is consistent with the number of the quantum gate in the quantum circuit.
Hanxu Zhang, Yifan Sun, Xiangdong Zhang
wiley   +1 more source

Non‐Invasive Brain Stimulation in Chronic Pain: Current Evidence, Network Perspectives and Paths to Personalization

open access: yesSensory Neuroscience, EarlyView.
Chronic pain reflects maladaptive network interactions across sensory, salience/affective, and descending modulatory pathways. We review evidence for non‐invasive brain stimulation—rTMS, tES, and low‐intensity focused ultrasound—highlighting modest, variable, and often short‐lived analgesic effects under conventional protocols.
Fabian Broecker, Sven Vanneste
wiley   +1 more source

Navigating Gravity: Competing Effects Result in Opposing Taxis for Different Janus Swimmers

open access: yesSmall, EarlyView.
The combined effects of gravity and wall‐induced hydrodynamics on the motion of Janus colloids are investigated. Platinum‐ and copper‐coated silica microswimmers show distinct gravitactic alignment near surfaces due to different hydrodynamic couplings. This distinct gravitactic behavior enables separation of initially mixed active particles.
Amir Sheikh Shoaei   +2 more
wiley   +1 more source

MnBr2${\rm MnBr}_2$ on the Graphene on Ir(110) Substrate: Growth, Structure, and Super‐Moiré

open access: yesSmall, EarlyView.
The study realizes single‐layer MnBr2${\rm MnBr}_2$ via molecular beam epitaxy on graphene on Ir(110), unveiling a unique super‐moiré (“moiré of moirés”) formed by lattices of different symmetries. Remarkably, this super‐moiré is driven by a virtual interaction between non‐contacting layers.
Affan Safeer   +5 more
wiley   +1 more source

Impact of Structural Heterogeneities in Hierarchically Grown Microribbons on 2D WS2 Monolayer on the Measured Local Hydrogen Evolution Activity on Au Substrate

open access: yesSmall, EarlyView.
Spatially resolved SECCM measurements reveal that hierarchically grown microribbons on 2D WS2 drastically suppress local HER activity. Relative to the basal plane of the 2D monolayer directly supported on an Au substrate, single‐layer and multilayer microribbons exhibit more than a ∼5‐fold and >10‐fold decrease in current density, respectively.
Laud Anim Adofo   +7 more
wiley   +1 more source

Separation of Magnetic Microparticles With Different Molecular Surface Functionalizations by Close‐to‐Surface Traveling‐Wave Magnetophoresis

open access: yesSmall, EarlyView.
Inducing surface‐near magnetic particle transport inside a static liquid via an engineered, dynamic potential energy landscape, different chemical surface properties of otherwise identical particles can be distinguished using simple optical observation.
Yahya Shubbak   +5 more
wiley   +1 more source

Effect of Postweld Heat Treatment on Laser‐Welded Duplex Stainless Steel: Crystallographic Patterns and Fatigue Behavior

open access: yessteel research international, EarlyView.
Laser welding of duplex stainless steel disrupts phase balance, promotes nitride precipitation, and reduces fatigue resistance. Postweld heat treatment restores austenite and dissolves nitrides, but the resulting crystallography and phase morphology still impair fatigue performance.
Aparecida Silva Magalhães   +6 more
wiley   +1 more source

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