Outputs (329)

Wall slip and bulk yielding in soft particle suspensions (2021)
Journal Article

We simulate a dense athermal suspension of soft particles sheared between hard walls of a prescribed roughness profile, fully accounting for the fluid mechanics of the solvent between the particles and for the solid mechanics of changes in the partic... Read More about Wall slip and bulk yielding in soft particle suspensions.

Feature issue introduction: applications of adaptive optics (2021)
Journal Article

This feature issue of Optics Express follows the 2020 Imaging and Applied Optics Congress and comprises of articles on the development and use of adaptive optics across the broad range of domains in which the technique has been applied - including at... Read More about Feature issue introduction: applications of adaptive optics.

Proximity induced magnetism and the enhancement of damping in ferromagnetic/heavy metal systems (2021)
Journal Article

The relationship between proximity induced magnetism (PIM) at the heavy metal/ferromagnet interface and spin-transport across such interfaces has generated significant debate. To investigate the link between the two, element specific X-ray magnetic c... Read More about Proximity induced magnetism and the enhancement of damping in ferromagnetic/heavy metal systems.

Why Do We Still Need a Stable Long Lifetime Deep Blue OLED Emitter? (2021)
Journal Article

The need for a high efficiency deep blue organic emitter with narrow emission line width has never been so great. This is driven by the need to simplify the complex OLED stack for displays to enable larger substrate sizes to be used and greatly incre... Read More about Why Do We Still Need a Stable Long Lifetime Deep Blue OLED Emitter?.

Determination of dynamic surface tension and viscosity of non-Newtonian fluids from drop oscillations (2014)
Journal Article

The oscillations of free-falling drops with size range from pl to μl have been used to measure the transient shear viscosity and the dynamic surface tension of shear-thinning fluids on the timescale of 10−5–10−2 s. The method is first validated with... Read More about Determination of dynamic surface tension and viscosity of non-Newtonian fluids from drop oscillations.

Functional magnetic waveguides for magnonics (2021)
Journal Article

Magnonics, or spin wave based spintronics, is an emerging technology where magnons—quanta for spin waves—process the information analogous to electronic charges in electronics. We introduce the fundamental components of a magnonic device and briefly... Read More about Functional magnetic waveguides for magnonics.

The Role of Dinuclearity in Promoting Thermally Activated Delayed Fluorescence (TADF) in Cyclometallated, N^C^N-coordinated Platinum(II) Complexes (2021)
Journal Article

In this work we present synthesis and an in-depth photophysical analysis of a di-Pt(II) complex with a ditopic bis-N^C^N ligand. The complex exhibits a dual luminescent behaviour by emitting simultaneously delayed fluorescence and phosphorescence. By... Read More about The Role of Dinuclearity in Promoting Thermally Activated Delayed Fluorescence (TADF) in Cyclometallated, N^C^N-coordinated Platinum(II) Complexes.

A semi-classical theory of magnetic inelastic scattering in transmission electron energy loss spectroscopy (2021)
Journal Article

The feasibility of detecting magnetic excitations using monochromated electron energy loss spectroscopy in the transmission electron microscope is examined. Inelastic scattering cross-sections are derived using a semi-classical electrodynamic model,... Read More about A semi-classical theory of magnetic inelastic scattering in transmission electron energy loss spectroscopy.

Surface Core Hole Electron Energy-Loss Fine Structure in MgO: Experiment and Theory (2021)
Journal Article

Core holes are an important contributing factor to the core-loss fine structure in electron energy-loss spectroscopy (EELS). While there has been much work on bulk materials, less is known about core hole screening in more complex dielectric environm... Read More about Surface Core Hole Electron Energy-Loss Fine Structure in MgO: Experiment and Theory.

Exploring the nature of the fergusonite–scheelite phase transition and ionic conductivity enhancement by Mo6+ doping in LaNbO4 (2021)
Journal Article

A number of metal oxides that crystallise in the scheelite structure type are known to be excellent oxide ion conductors. Here we report the synthesis of a series of materials with general formula LaNb1−xMoxO4+0.5x (x = 0, 0.08, 0.12, 0.16, 0.20) and... Read More about Exploring the nature of the fergusonite–scheelite phase transition and ionic conductivity enhancement by Mo6+ doping in LaNbO4.

Isotopic Compositions of Plagioclase From Plutonic Xenoliths Reveal Crustal Assimilation Below Martinique, Lesser Antilles Arc (2021)
Journal Article

The chemical and isotopic compositions of volcanic arc lavas often show evidence for involvement of a sedimentary component during magma genesis. Determining where this sedimentary component is added to arc magmas is of vital importance for constrain... Read More about Isotopic Compositions of Plagioclase From Plutonic Xenoliths Reveal Crustal Assimilation Below Martinique, Lesser Antilles Arc.

Applying TADF Emitters in Bioimaging and Sensing—A Novel Approach Using Liposomes for Encapsulation and Cellular Uptake (2021)
Journal Article

A new method for facilitating the delivery, uptake and intracellular localisation of thermally activated delayed fluorescence (TADF) complexes was developed. First, confinement of TADF complexes in liposomes was demonstrated, which were subsequently... Read More about Applying TADF Emitters in Bioimaging and Sensing—A Novel Approach Using Liposomes for Encapsulation and Cellular Uptake.

Evaporation of Binary-Mixture Liquid Droplets: The Formation of Picoliter Pancakelike Shapes (2021)
Journal Article

Small multicomponent droplets are of increasing importance in a plethora of technological applications ranging from the fabrication of self-assembled hierarchical patterns to the design of autonomous fluidic systems. While often far away from equilib... Read More about Evaporation of Binary-Mixture Liquid Droplets: The Formation of Picoliter Pancakelike Shapes.

Real-time tracking of ionic nano-domains under shear flow (2021)
Journal Article

The behaviour of ions at solid–liquid interfaces underpins countless phenomena, from the conduction of nervous impulses to charge transfer in solar cells. In most cases, ions do not operate as isolated entities, but in conjunction with neighbouring i... Read More about Real-time tracking of ionic nano-domains under shear flow.

Deriving the skyrmion Hall angle from skyrmion lattice dynamics (2021)
Journal Article

Magnetic skyrmions are topologically non-trivial, swirling magnetization textures that form lattices in helimagnetic materials. These magnetic nanoparticles show promise as high efficiency next-generation information carriers, with dynamics that are... Read More about Deriving the skyrmion Hall angle from skyrmion lattice dynamics.

A history of high-power laser research and development in the United Kingdom (2021)
Journal Article

The first demonstration of laser action in ruby was made in 1960 by T. H. Maiman of Hughes Research Laboratories, USA. Many laboratories worldwide began the search for lasers using different materials, operating at different wavelengths. In the UK, a... Read More about A history of high-power laser research and development in the United Kingdom.

Wetting and Drying of Aqueous Droplets Containing Nonionic Surfactants CnEm (2021)
Journal Article

This paper presents a systematic study of the wetting and drying of aqueous pico-liter droplets containing nonionic surfactants polyoxyethylene alkyl ethers (CnEm; n = 10, 12, 14, m = 6 or 8) in comparison with the anionic surfactant sodium dodecyl s... Read More about Wetting and Drying of Aqueous Droplets Containing Nonionic Surfactants CnEm.

X-ray imaging of silicon die within fully packaged semiconductor devices (2021)
Journal Article

X-ray diffraction imaging (XRDI) (topography) measurements of silicon die warpage within fully packaged commercial quad-flat no-lead devices are described. Using synchrotron radiation, it has been shown that the tilt of the lattice planes in the Anal... Read More about X-ray imaging of silicon die within fully packaged semiconductor devices.

Symmetry and the Role of the Anion Sublattice in Aurivillius Oxyfluoride Bi2TiO4F2 (2021)
Journal Article

The photocatalytic and dielectric behaviors of Aurivillius oxyfluorides such as Bi2TiO4F2 depend sensitively on their crystal structure and symmetry but these are not fully understood. Our experimental work combined with symmetry analysis demonstrate... Read More about Symmetry and the Role of the Anion Sublattice in Aurivillius Oxyfluoride Bi2TiO4F2.

Magnetization dynamics of single and trilayer permalloy nanodots (2021)
Journal Article

We have investigated the magnetization dynamics in single and trilayer circular permalloy nanodots with a diameter of 120 nm using broadband ferromagnetic resonance spectroscopy. For single-layer nanodots, two well-separated modes near the saturation... Read More about Magnetization dynamics of single and trilayer permalloy nanodots.