Physics (Scholarly Publications): Recent submissions
Now showing items 121-140 of 1742
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Direct measurement of the contribution of street lighting to satellite observations of nighttime light emissions from urban areas
(2021)Nighttime light emissions are increasing in most countries worldwide, but which types of lighting are responsible for the increase remains unknown. Also unknown is what fraction of outdoor light emissions and associated ... -
Single-pulse all-optical partial switching in amorphous DyxCo1-xand TbxCo1-xwith random anisotropy
(2022)Repeated uniform switching of the magnetization of thin films of ferrimagnetic amorphous Gdx (FeCo)1 x in response to single fast laser pulses is well established. Here, we report unusual toggle switching in thin films ... -
Predicting tensorial molecular properties with equivariant machine learning models
(American Physical Society (APS), 2022)Embedding molecular symmetries into machine-learning models is key for efficient learning of chemico-physical scalar properties, but little evidence on how to extend the same strategy to tensorial quantities exists. Here ... -
Hydrogen-Intercalated 2D Magnetic Bilayer: Controlled Magnetic Phase Transition and Half-Metallicity via Ferroelectric Switching
(2022)Electrically controlled magnetism in two-dimensional (2D) multiferroics is highly desirable for both fundamental research and the future development of low-power nanodevices. Herein, inspired by the recently experimentally ... -
Using Weakly Supervised Deep Learning to Classify and Segment Single-Molecule Break-Junction Conductance Traces
(2021)In order to design molecular electronic devices with high performance and stability, it is crucial to understand their structure-to-property relationships. Single-molecule break junction measurements yield a large number ... -
Transition between large and small electron polaron at neutral ferroelectric domain walls in BiFeO3
(2021)Ferroelectric domain walls are planes within an insulating material that can accumulate and conduct charge carriers, hence the interaction of the domain walls with the charge carriers can be important for photovoltaic and ... -
Prediction of the two-dimensional Janus ferrovalley material LaBrI
(2021)Two-dimensional (2D) ferrovalley materials, displaying coexistence of spontaneous spin and valley polarizations, have recently attracted significant attention due to their potential for applications in the fields of ... -
Stiffness and atomic-scale friction in superlubricant MoS<sub>2</sub> bilayers
(2023)By using ab-initio-accurate force fields and molecular dynamics simulations we demonstrate that the layer stiffness has profound effects on the superlubricant state of two-dimensional van der Waals heterostructures. These ... -
On the conservation of the angular momentum in ultrafast spin dynamics
(2021)The total angular momentum of a close system is a conserved quantity, which should remain constant in time for any excitation experiment once the pumping signal has extinguished. Such conservation, however, is never satisfied ... -
First-principles prediction of polar half-metallicity and out-of-plane piezoelectricity in two-dimensional quintuple layered cobalt selenide
(2021)Polar half-metals, possessing both polarity and half-metallicity, may have potential as media in novel spintronic quantum devices, but they have never been reported in the two-dimensional (2D) form. By combining the particle ... -
High-Performance Spin Filters Based on 1,2,4,5-Tetrahydroxybenzene Molecules Attached to Bulk Nickel Electrodes
(2021)Achieving highly spin-polarized current at the nanoscale is of paramount importance in molecular spintronics. Using a self-consistent ab initio approach that combines the nonequilibrium Green’s function formalism with spin ... -
Interfacing 2D VS2 with Janus MoSSe: Antiferromagnetic electric polarization and charge transfer driven Half-metallicity
(2021)Half metallic 2D materials with 100% spin polarization at the fermi level can be applied to spintronics to enhance the device efficiency. We identified that the Janus MoSSe monolayer can induce halfmetallicity in the VS2 ... -
Highly Sensitive Composite Foam Bodily Sensors Based on the g-Putty Ink Soaking Procedure
(2021)Electrically conductive composite materials are highlighted as a potential tech path toward future flexible devices for wearable health technologies. To be commercially viable, these materials must not only be mechanically ... -
Quantifying the Piezoresistive Mechanism in High-Performance Printed Graphene Strain Sensors
(2022): Printed strain sensors will be important in applications such as wearable devices, which monitor breathing and heart function. Such sensors need to combine high sensitivity and low resistance with other factors such ... -
Quantifying the Effect of Separator Thickness on Rate Performance in Lithium-Ion Batteries
(2022)In addition to improving parameters such as energy density and stability, it is important to maximise rate performance in lithium ion batteries. While much work has focused on rate-limiting factors associated with the ... -
Liquid Phase Exfoliation of Nonlayered Non-Van der Waals Iron Trifluoride (FeF3) into 2D-Platelets for High-Capacity Lithium Storing Cathodes
(2022)Developing high-performance cathode materials for lithium-ion batteries is necessary to maximise both energy and power density. One promising cathode material is iron trifluoride (FeF3) having a high theoretical capacity ... -
2D nanosheets from fool's gold by LPE: High performance lithium-ion battery anodes made from stone
(2021)Recently, it has been shown that it is possible to apply liquid-phase exfoliation to non-layered materials, yielding quasi-2D nanosheets. It has been proposed that even a slight bonding anisotropy in the starting crystal ... -
The electrical conductivity of solution-processed nanosheet networks
(2021)Solution-processed networks of 2D nanosheets are promising for a range of applications in the field of printed electronics. However, the electrical performance of these networks represented for example by the mobility – ... -
High-frequency power loss mechanisms in ultra-thin amorphous ribbons
(2021)Soft magnetic amorphous materials with ultra-low power loss are highly desirable for high-frequency drive applications. The present work demonstrates the high-frequency power loss performance and underlying loss mechanisms ... -
Highly Conductive Networks of Silver Nanosheets
(2022)Although printed networks of semiconducting nanosheets have found success in a range of applications, conductive nanosheet networks are limited by low conductivities (<106 S m−1). Here, dispersions of silver nanosheets ...
