Results 21 to 30 of about 689,569 (290)

Quantum Control of the Tin-Vacancy Spin Qubit in Diamond

open access: yesPhysical Review X, 2021
Group-IV color centers in diamond are a promising light-matter interface for quantum networking devices. The negatively charged tin-vacancy center (SnV) is particularly interesting, as its large spin-orbit coupling offers strong protection against phonon
Romain Debroux   +14 more
doaj   +1 more source

Fused-Ring Derivatives of Quinoxalines: Spectroscopic Characterization and Photoinduced Processes Investigated by EPR Spin Trapping Technique

open access: yesMolecules, 2014
10-Ethyl-7-oxo-7,10-dihydropyrido[2,3-f]quinoxaline derivatives, synthesized as promising biologically/photobiologically active compounds were characterized by UV/vis, FT-IR and fluorescent spectroscopy.
Zuzana Barbieriková   +5 more
doaj   +1 more source

The hole spin in a semiconductor quantum dot [PDF]

open access: yes, 2015
Extensive research on semiconductor quantum dots (QDs) has been a hot topic in the semiconductor community over the past 20 to 30 years and is still ongoing.
Prechtel, Jonathan H.
core   +1 more source

Spin two-axis-twisting via coherent population trapping based cavity QED

open access: yesNew Journal of Physics, 2023
We present a spin two-axis-twisting mechanism via coherent population trapping (CPT) based atom–photon interactions. CPT happens and the atoms are trapped in the dark state (coherent superposition of two ground states) when the ground states are ...
Liang Hu   +4 more
doaj   +1 more source

Copper(II) Thiosemicarbazone Complexes and Their Proligands upon UVA Irradiation: An EPR and Spectrophotometric Steady-State Study

open access: yesMolecules, 2018
X- and Q-band electron paramagnetic resonance (EPR) spectroscopy was used to characterize polycrystalline Cu(II) complexes that contained sodium 5-sulfonate salicylaldehyde thiosemicarbazones possessing a hydrogen, methyl, ethyl, or phenyl substituent at
Michal Hricovíni   +5 more
doaj   +1 more source

Optical trapping with a perfect vortex beam [PDF]

open access: yes, 2014
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding.Vortex beams with different topological charge usually have different profiles and radii of peak intensity.
Arita, Yoshihiko   +9 more
core   +1 more source

Soft X-ray Absorption Spectroscopy Study of Spin Crossover Fe-Compounds: Persistent High Spin Configurations under Soft X-ray Irradiation

open access: yesCrystals, 2018
Metal-organic complex exhibiting spin crossover (SCO) behavior has drawn attention for its functionality as a nanoscale spin switch. The spin states in the metal ions can be tuned by external stimuli such as temperature or light.
Ahmed Yousef Mohamed   +5 more
doaj   +1 more source

EPR spectroscopy investigation of oxygen radical production by methylene blue and indocyanine green in aqueous solutions under laser irradiation in the context of antibacterial photodynamic therapy [PDF]

open access: yesFolia Medica, 2021
Introduction: Antibacterial photodynamic therapy is a promising treatment modality in the anti-infective therapy of numerous oral diseases. It involves photo activation of a reactive substance (dye), thus releasing reactive oxygen species (ROS-radicals ...
Mihail Tanev   +2 more
doaj   +3 more sources

Synthesis of a mitochondria-targeted spin trap using a novel Parham-type cyclization [PDF]

open access: yes, 2009
A new cyclic nitrone spin trap, [4-(3′,3′-dibutyl-2′-oxy-3′H-isoindol-5′-yloxy)butyl]triphenylphosphonium bromide (MitoSpin), bearing a lipophilic cation has been prepared by a route that involves a novel Parham-type lithiation–cyclization of an ...
Hay, Alison   +9 more
core   +1 more source

NO spin trapping in biological systems

open access: yesFrontiers in Bioscience, 2009
The most recent data on mechanisms of spin trapping of nitric oxide (NO) by iron dithiocarbamate complexes in animal and plant cells and tissues are considered. The rationale is as follows: 1 In the absence of NO in cells and tissues, iron binds primarily to compounds others than dithiocarbamate ligands, e.g., tricarbonic acids. 2.
Anatoly, Vanin, Alexander, Poltorakov
openaire   +2 more sources

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