All Outputs (2085)

Linear and nonlinear optical investigations of polyvinyl chloride modified La2O3 nanocomposite films (2024)
Journal Article
Alhassan, S., Alshammari, K., Alshammari, M., Alotaibi, T., Alshammari, A. H., Alhamazani, A., …Abdel Mohaymen Taha, T. (2024). Linear and nonlinear optical investigations of polyvinyl chloride modified La2O3 nanocomposite films. Results in Physics, 58, Article 107456. https://doi.org/10.1016/j.rinp.2024.107456

In the present work, we report the effect and improvement of PVC polymer blend nanocomposites performance with addition of lanthanum oxide (La2O3) nanofiller. The structural properties of the samples were studied using different characterization tech... Read More about Linear and nonlinear optical investigations of polyvinyl chloride modified La2O3 nanocomposite films.

Using machine learning to optimise chameleon fifth force experiments (2024)
Journal Article
Briddon, C., Burrage, C., Moss, A., & Tamosiunas, A. (2024). Using machine learning to optimise chameleon fifth force experiments. Journal of Cosmology and Astroparticle Physics, 2024(2), Article 11. https://doi.org/10.1088/1475-7516/2024/02/011

The chameleon is a theorised scalar field that couples to matter and possess a screening mechanism, which weakens observational constraints from experiments performed in regions of higher matter density. One consequence of this screening mechanism is... Read More about Using machine learning to optimise chameleon fifth force experiments.

Towards Room Temperature Thermochromic Coatings with controllable NIR-IR modulation for solar heat management & smart windows applications (2024)
Journal Article
Khanyile, B. S., Numan, N., Simo, A., Nkosi, M., Mtshali, C. B., Khumalo, Z., …Maaza, M. (2024). Towards Room Temperature Thermochromic Coatings with controllable NIR-IR modulation for solar heat management & smart windows applications. Scientific Reports, 14(1), Article 2818. https://doi.org/10.1038/s41598-024-52021-7

Solar heat management & green air-conditioning are among the major technologies that could mitigate heat islands phenomenon while minimizing significantly the CO2 global foot-print within the building & automotive sectors. Chromogenic materials in ge... Read More about Towards Room Temperature Thermochromic Coatings with controllable NIR-IR modulation for solar heat management & smart windows applications.

Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO 2 (2024)
Journal Article
Fedchenko, O., Minár, J., Akashdeep, A., D’Souza, S. W., Vasilyev, D., Tkach, O., …Elmers, H. (2024). Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO 2. Science Advances, 10(5), Article eadj4883. https://doi.org/10.1126/sciadv.adj4883

Altermagnets are an emerging elementary class of collinear magnets. Unlike ferromagnets, their distinct crystal symmetries inhibit magnetization while, unlike antiferromagnets, they promote strong spin polarization in the band structure. The correspo... Read More about Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO 2.

Direct Deposition of Copper Atoms onto Graphitic Step Edges Lowers Overpotential and Improves Selectivity of Electrocatalytic CO2 Reduction (2024)
Working Paper
Thangamuthu, M., Burwell, T., Aliev, G., Ghaderzadeh, S., Kohlrausch, E., Chen, Y., …Khlobystov, A. Direct Deposition of Copper Atoms onto Graphitic Step Edges Lowers Overpotential and Improves Selectivity of Electrocatalytic CO2 Reduction

Minimizing our reliance on bulk precious metals is to increase the fraction of surface atoms and improve the metal-support interface. In this work, we employ a solvent/ligand/counterion-free method to deposit copper in the atomic form directly onto a... Read More about Direct Deposition of Copper Atoms onto Graphitic Step Edges Lowers Overpotential and Improves Selectivity of Electrocatalytic CO2 Reduction.

Continuous Sensing and Parameter Estimation with the Boundary Time Crystal (2024)
Journal Article
Cabot, A., Carollo, F., & Lesanovsky, I. (2024). Continuous Sensing and Parameter Estimation with the Boundary Time Crystal. Physical Review Letters, 132(5), Article 050801. https://doi.org/10.1103/physrevlett.132.050801

A boundary time crystal is a quantum many-body system whose dynamics is governed by the competition between coherent driving and collective dissipation. It is composed of N two-level systems and features a transition between a stationary phase and an... Read More about Continuous Sensing and Parameter Estimation with the Boundary Time Crystal.

A cooling flow around the low-redshift quasar H1821+643 (2024)
Journal Article
Russell, H. R., Nulsen, P. E., Fabian, A. C., Braben, T. E., Brandt, W. N., Clews, L., …Veilleux, S. (2024). A cooling flow around the low-redshift quasar H1821+643. Monthly Notices of the Royal Astronomical Society, 528(2), 1863–1878. https://doi.org/10.1093/mnras/stae026

H1821+643 is the nearest quasar hosted by a galaxy cluster. The energy output by the quasar, in the form of intense radiation and radio jets, is captured by the surrounding hot atmosphere. Here, we present a new deep Chandra observation of H1821+643... Read More about A cooling flow around the low-redshift quasar H1821+643.

Quantum corrected Q-ball dynamics (2024)
Journal Article
Xie, Q., Saffin, P. M., Tranberg, A., & Zhou, S. (2024). Quantum corrected Q-ball dynamics. Journal of High Energy Physics, 2024(1), Article 165. https://doi.org/10.1007/jhep01%282024%29165

The physics of individual Q-balls and interactions between multiple Q-balls are well-studied in classical numerical simulations. Interesting properties and phenomena have been discovered, involving stability, forces, collisions and swapping of charge... Read More about Quantum corrected Q-ball dynamics.

Piezoelectric excitation and acoustic detection of thin film polymer membrane vibrations (2024)
Journal Article
Roberts, N. M., & Sharp, J. S. (2024). Piezoelectric excitation and acoustic detection of thin film polymer membrane vibrations. Physical Review E, 109(1), Article 014802. https://doi.org/10.1103/physreve.109.014802

A simple method of measuring the vibrational response of a thin film membrane was developed. Piezoelectric excitation and acoustic detection (using a microphone) allowed the vibrational spectra of thin membranes to be measured in the kHz range. Vibra... Read More about Piezoelectric excitation and acoustic detection of thin film polymer membrane vibrations.

Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses (2024)
Journal Article
Scherbakov, A. V., Carr, A. D., Linnik, T. L., Kukhtaruk, S. M., Armour, A. D., Nadzeyka, A., …Bayer, M. (2024). Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses. Physical Review Research, 6(1), Article L012019. https://doi.org/10.1103/PhysRevResearch.6.L012019

We propose and demonstrate the concept of hybrid coherent control (CC) whereby a quantum or classical harmonic oscillator is excited by two excitations: one is quasiharmonic (i.e., harmonic with a finite lifetime) and the other is a pulsed broadband... Read More about Hybrid coherent control of magnons in a ferromagnetic phononic resonator excited by laser pulses.

Ultraviolet and Blue Optical Imaging of UVCANDELS (2024)
Journal Article
Wang, X., Teplitz, H. I., Sun, L., Rafelski, M., Grogin, N., Prichard, L., …Zabelle, B. (2024). Ultraviolet and Blue Optical Imaging of UVCANDELS. Research Notes of the American Astronomical Society, 8(1), Article 26. https://doi.org/10.3847/2515-5172/ad1f6f

The UltraViolet Imaging of the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey Fields (UVCANDELS) survey provided ultraviolet F275W imaging with coordinated parallel optical F435W imaging in four of the five CANDELS fields: GOODS-N, GO... Read More about Ultraviolet and Blue Optical Imaging of UVCANDELS.

A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy (2024)
Journal Article
Rose, T., McNamara, B. R., Combes, F., Edge, A. C., Russell, H., Salomé, P., …Tremblay, G. (2024). A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy. Monthly Notices of the Royal Astronomical Society, 528(2), 3441–3455. https://doi.org/10.1093/mnras/stae213

We present new ALMA CO(2-1) observations tracing 2.2 × 10 10 M ⊙ of molecular gas in Abell 2390's brightest cluster galaxy, where half the gas is located in a one-sided plume extending 15 kpc out from the galaxy centre. This molecular gas has a smoot... Read More about A massive multiphase plume of gas in Abell 2390's brightest cluster galaxy.

Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings (2024)
Journal Article
Van Raden, J. M., Deng, J., Gotfredsen, H., Hergenhahn, J., Clarke, M., Edmondson, M., …Anderson, H. L. (2024). Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings. Angewandte Chemie International Edition, Article e202400103. https://doi.org/10.1002/anie.202400103

Strained macrocycles display interesting properties, such as conformational rigidity, often resulting in enhance π‐conjugation or enhanced affinity for non‐covalent guest binding, yet they can be difficult to synthesize. Here we use computational mod... Read More about Template‐Directed Synthesis of Strained meso‐meso‐Linked Porphyrin Nanorings.

New insights into the role of AGNs in forming the cluster red sequence (2024)
Journal Article
Shimakawa, R., Pérez-Martínez, J. M., Koyama, Y., Tanaka, M., Tanaka, I., Kodama, T., …Kurk, J. D. (2024). New insights into the role of AGNs in forming the cluster red sequence. Monthly Notices of the Royal Astronomical Society, 528(2), 3679–3695. https://doi.org/10.1093/mnras/stae118

As a considerable investment of time from various telescope facilities was dedicated toward studying the Spiderweb protocluster at z = 2.2, it so far remains one of the most extensively studied protocluster. We report here the latest results in this... Read More about New insights into the role of AGNs in forming the cluster red sequence.

Perturbative effective field theory expansions for cosmological phase transitions (2024)
Journal Article
Gould, O., & Tenkanen, T. V. I. (2024). Perturbative effective field theory expansions for cosmological phase transitions. Journal of High Energy Physics, 2024, Article 48. https://doi.org/10.1007/JHEP01%282024%29048

Guided by previous non-perturbative lattice simulations of a two-step electroweak phase transition, we reformulate the perturbative analysis of equilibrium thermodynamics for generic cosmological phase transitions in terms of effective field theory (... Read More about Perturbative effective field theory expansions for cosmological phase transitions.

Colon length in pediatric health and constipation measured using magnetic resonance imaging and three dimensional skeletonization (2024)
Journal Article
Sharif, H., Hoad, C. L., Abrehart, N., Gowland, P. A., Spiller, R. C., Kirkham, S., …Marciani, L. (2024). Colon length in pediatric health and constipation measured using magnetic resonance imaging and three dimensional skeletonization. PLoS ONE, 19(1), Article e0296311. https://doi.org/10.1371/journal.pone.0296311

Recent magnetic resonance imaging (MRI) studies showed that colonic volumes in children are different between health and functional constipation. The length of the colon has however been rarely measured and principally using unphysiological colon pre... Read More about Colon length in pediatric health and constipation measured using magnetic resonance imaging and three dimensional skeletonization.

Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride (2024)
Journal Article
Shima, K., Cheng, T. S., Mellor, C. J., Beton, P. H., Elias, C., Valvin, P., …Chichibu, S. F. (2024). Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride. Scientific Reports, 14(1), Article 169. https://doi.org/10.1038/s41598-023-50502-9

Cathodoluminescence (CL) spectroscopy is a suitable technique for studying the luminescent properties of optoelectronic materials because CL has no limitation on the excitable bandgap energy and eliminates ambiguous signals due to simple light scatte... Read More about Cathodoluminescence spectroscopy of monolayer hexagonal boron nitride.

Rejection-free quantum Monte Carlo in continuous time from transition path sampling (2024)
Journal Article
Causer, L., Sfairopoulos, K., Mair, J. F., & Garrahan, J. P. (2024). Rejection-free quantum Monte Carlo in continuous time from transition path sampling. Physical Review B, 109(2), Article 024307. https://doi.org/10.1103/physrevb.109.024307

Continuous-time quantum Monte Carlo refers to a class of algorithms designed to sample the thermal distribution of a quantum Hamiltonian through exact expansions of the Boltzmann exponential in terms of stochastic trajectories which are periodic in i... Read More about Rejection-free quantum Monte Carlo in continuous time from transition path sampling.

Designing Optimal Loop, Saddle, and Ellipse-Based Magnetic Coils by Spherical Harmonic Mapping (2023)
Journal Article
Hobson, P. J., Hardwicke, N. L., Davis, A., Smith, T. X., Morley, C., Packer, M., …Fromhold, M. (2023). Designing Optimal Loop, Saddle, and Ellipse-Based Magnetic Coils by Spherical Harmonic Mapping. IEEE Transactions on Instrumentation and Measurement, 72, Article 1005815. https://doi.org/10.1109/TIM.2023.3284138

Adaptable, low-cost, coils designed by carefully selecting the arrangements and geometries of simple primitive units are used to generate magnetic fields for diverse applications. These extend from magnetic resonance and fundamental physics experimen... Read More about Designing Optimal Loop, Saddle, and Ellipse-Based Magnetic Coils by Spherical Harmonic Mapping.

Higgs-induced screening mechanisms in scalar-tensor theories (2023)
Journal Article
Burrage, C., & Millington, P. (2024). Higgs-induced screening mechanisms in scalar-tensor theories. Annals of the New York Academy of Sciences, 1531(1), 95-103. https://doi.org/10.1111/nyas.15092

We consider the theory of a light conformally coupled scalar field, that is, one that is coupled directly to the Ricci scalar of the gravitational sector. This theory can be written equivalently as one of a light scalar that is coupled to the Standar... Read More about Higgs-induced screening mechanisms in scalar-tensor theories.