Results 71 to 80 of about 87,852 (308)

Twist engineering induced spin-orbit coupling for photosynthesis of ethane from carbon dioxide and water

open access: yesNature Communications
Harnessing sunlight, carbon dioxide, and water to produce two-carbon products is promising but constrained by sluggish kinetics and high carbon–carbon coupling barriers.
Zhaoli Liu   +6 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Magnetic‐Field Control of Surface States in CoFe2O4 Thin Films for Nitrate Electroreduction to Ammonia

open access: yesAdvanced Functional Materials, EarlyView.
Magnetic‐field‐assisted CVD of heterometallic single‐source precursors modulates thin‐film surface electronic structure and interfacial charge transfer. Field‐grown (Cobalt ferrite‐1T)CF‐1T films exhibit stabilized electronic states, lower kinetic barriers, and markedly enhanced nitrate‐to‐ammonia electrocatalysis versus (Cobalt ferrite‐0T) CF‐0T ...
Touraj Karimpour   +11 more
wiley   +1 more source

Instrumental aspects of high-field force-detected electron spin resonance

open access: yes, 2015
Magnetic resonance force microscopy (MRFM) is a new measurement technique combining scanning probe microscopy (SPM) and MR spectroscopy, offering the potential of high resolution chemical specific imaging.
Cruickshank, Paul Alexander Sawchuk
core  

Low temperature transport and evidence for nuclear order in GaAs Quantum Wires [PDF]

open access: yes, 2014
In this thesis we focus on low temperature transport through cleaved edge overgrowth (CEO) quantum wires. This thesis is motivated by recent theoretical work on one hand that predicts the formation of a nuclear helimagnet in presence of a Luttinger ...
Scheller, Christian Philipp
core   +1 more source

Electro‐Steric Ion Confinement in Polyelectrolyte Networks for Robust Nonvolatile Artificial Synapse

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte stoichiometry governs ion transport and retention in electrolyte‐gated synaptic transistors. A PSS‐rich network creates electro‐steric ion confinement that suppresses ion back‐diffusion and stabilizes channel doping, enabling robust nonvolatile synaptic memory, linear weight updates, and low‐energy operation.
Donghwa Lee   +9 more
wiley   +1 more source

Field dispersion and strong coupling of nuclear-electron spin excitation in MnCO_{3}

open access: yesPhysical Review Research
Hybridized nuclear and electron spin excitation in a MnCO_{3} crystal, a weakly anisotropic antiferromagnet, has been investigated. In this material, the hyperfine interaction is strong enough to form a nuclear spin wave.
Takahiko Makiuchi   +7 more
doaj   +1 more source

Unified Analytical Framework for Understanding the Operational Stability of Blue Phosphorescent OLEDs: Quantitative Insights Into Exciton Recycling and Bimolecular Interactions

open access: yesAdvanced Functional Materials, EarlyView.
Blue phosphorescent OLEDs remain limited by poor operational stability. Here, a unified analytical framework integrating transient photoluminescence and magneto‐electroluminescence is developed to correlate intrinsic material photophysics with electrically driven degradation.
Hakjun Lee, Bum June Park, Taekyung Kim
wiley   +1 more source

Nitroxides in Mechanistic Studies: Ageing of Gold Nanoparticles and Nitroxide Transformation in Acids [PDF]

open access: yes, 2010
The work described in this thesis includes the applications of nitroxide in the mechanistic studies of two very different research topics. Chapter 2 describes the investigation of ageing of gold nanoparticles (AuNPs) and its mechanistic implications.
Ma, Yun
core  

Changes in perfusion and permeability in glioblastoma model induced by the anti-angiogenic agents cediranib and thalidomide

open access: yesActa Oncologica
Background and purpose: The poor delivery of drugs to infiltrating tumor cells contributes to therapeutic failure in glioblastoma. During the early phase of an anti-angiogenic treatment, a remodeling of the tumor vasculature could occur, leading to a ...
Jérôme Conq   +3 more
doaj   +1 more source

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