Research Repository

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Frequency difference mapping applied to the corpus callosum at 7T (2018)
Journal Article
Tendler, B. C., & Bowtell, R. (2018). Frequency difference mapping applied to the corpus callosum at 7T. Magnetic Resonance in Medicine, doi:10.1002/mrm.27626

Purpose: Frequency difference mapping (FDM) is a phase processing technique which characterises the non-linear temporal evolution of the phase of gradient echo signals. Here, a novel FDM processing algorithm is introduced, which is shown to reveal in... Read More

Tidal interactions and mergers in intermediate redshift EDisCS clusters (2018)
Journal Article
Deger, S., Rudnick, G., Kelkar, K., Aragón-Salamanca, A., Desai, V., Lotz, J. M., …Zaritsky, D. (2018). Tidal interactions and mergers in intermediate redshift EDisCS clusters. Astrophysical Journal, 869(1), doi:10.3847/1538-4357/aaeb87

We study the fraction of tidal interactions and mergers with well identified observability timescales (fTIM) in group, cluster, and accompanying field galaxies and its dependence on redshift (z), cluster velocity dispersion (sigma) and environment an... Read More

Robust Rydberg gate via Landau-Zener control of Förster resonance (2018)
Journal Article
Huang, X., Ding, Z., Hu, C., Shen, L., Li, W., Wu, H., & Zheng, S. (2018). Robust Rydberg gate via Landau-Zener control of Förster resonance. Physical Review A, 98(5), doi:10.1103/physreva.98.052324

In this paper, we propose a scheme to implement the two-qubit controlled-Z gate via the Stark-tuned Förster interaction of Rydberg atoms, where the Förster defect is driven by a time-dependent electric field of a simple sinusoidal function while the... Read More

A direct test of density wave theory in a grand design spiral galaxy (2018)
Journal Article
Peterken, T. G., Merrifield, M. R., Aragón-Salamanca, A., Drory, N., Krawczyk, C. M., Masters, K. L., …Westfall, K. B. (2018). A direct test of density wave theory in a grand design spiral galaxy. Nature Astronomy, doi:10.1038/s41550-018-0627-5

The exact nature of the arms of spiral galaxies is still an open question1. It has been widely assumed that spiral arms in galaxies with two distinct symmetrical arms are the products of density waves that propagate around the disk, with the spiral a... Read More

Spin switching in antiferromagnets using Néel-order spin-orbit torques (2018)
Journal Article
Wadley, P., & Edmonds, K. (2018). Spin switching in antiferromagnets using Néel-order spin-orbit torques. Chinese Physics B, 27(10), doi:10.1088/1674-1056/27/10/107201

Antiferromagnets offer considerable potential for electronic device applications. This article reviews recent demonstrations of spin manipulation in antiferromagnetic devices using applied electrical currents. Due to spin-orbit coupling in environmen... Read More

SDSS-IV MaNGA: pattern speeds of barred galaxies (2018)
Journal Article
Guo, R., Mao, S., Athanassoula, E., Li, H., Ge, J., Long, R., …Masters, K. (2019). SDSS-IV MaNGA: pattern speeds of barred galaxies. Monthly Notices of the Royal Astronomical Society, 482(2), 1733-1756. doi:10.1093/mnras/sty2715

The MaNGA project has obtained IFU data for several thousand nearby galaxies, including barred galaxies. With the two dimensional spectral and kinematic information provided by IFUs, we can measure the pattern speed of a barred galaxy, which determin... Read More

Enhancing correlation times for edge spins through dissipation (2018)
Journal Article
Vasiloiu, L. M., Carollo, F., & Garrahan, J. P. (2018). Enhancing correlation times for edge spins through dissipation. Physical Review B, 98(9), (1-6). doi:10.1103/physrevb.98.094308. ISSN 2469-9950

Spin chains with open boundaries, such as the transverse field Ising model, can display coherence times for edge spins that diverge with the system size as a consequence of almost conserved operators, the so-called strong zero modes. Here we discuss... Read More

Investigation of optical and electrical properties of erbium-doped TiO2 thin films for photodetector applications (2018)
Journal Article
Mondal, S., Ghosh, A., Rizzo Piton, M., Gomes, J. P., Felix, J. F., Galvão Gobato, Y., …Mondal, A. (2018). Investigation of optical and electrical properties of erbium-doped TiO2 thin films for photodetector applications. Journal of Materials Science: Materials in Electronics, 29(22), (19588–19600). doi:10.1007/s10854-018-0090-1. ISSN 0957-4522

We have investigated the electrical and optical properties of erbium (Er3+) doped TiO2 thin films (Er:TiO2 TFs) grown by sol–gel technique on glass and silicon substrates. The samples were characterized by field emission gun–scanning electron microsc... Read More

Evaluation on La2O3 garlanded ceria heterostructured binary metal oxide nanoplates for UV/ visible light induced removal of organic dye from urban wastewater (2018)
Journal Article
Magdalane, C. M., Kaviyarasu, K., Matinise, N., Mayedwa, N., Mongwaketsi, N., Letsholathebe, D., …Jeyaraj, B. (2018). Evaluation on La2O3 garlanded ceria heterostructured binary metal oxide nanoplates for UV/ visible light induced removal of organic dye from urban wastewater. South African Journal of Chemical Engineering, 26, (49-60). doi:10.1016/j.sajce.2018.09.003

A low energy bandgap between Ce3+ and Ce4+ states in cerium oxides, high oxygen mobility and high oxygen storage capacity are the properties that qualify them to be the most widely used heterogeneous catalysts. This present work is an account of stud... Read More

Attenuated post-movement beta rebound associated with schizotypal features in healthy people (2018)
Journal Article
Hunt, B. A., Liddle, E. B., Gascoyne, L. E., Magazzini, L., Routley, B. C., Singh, K. D., …Liddle, P. F. (2018). Attenuated post-movement beta rebound associated with schizotypal features in healthy people. Schizophrenia Bulletin, doi:10.1093/schbul/sby117

Introduction: Schizophrenia and Schizotypal Personality Disorder (SPD) lie on a single spectrum of mental illness and converging evidence suggests similarities in the etiology of the two conditions. However, schizotypy is a heterogeneous facet of per... Read More

Solvent evaporation driven entrapment of magnetic nanoparticles in mesoporous frame for designing a highly efficient MRI contrast probe (2018)
Journal Article
Saikia, K., Bhattacharya, K., Sen, D., Kaushik, S., Biswas, J., Lodha, S., …Deb, P. (2019). Solvent evaporation driven entrapment of magnetic nanoparticles in mesoporous frame for designing a highly efficient MRI contrast probe. Applied Surface Science, 464, (567-576). doi:10.1016/j.apsusc.2018.09.117. ISSN 0169-4332

The present work reports a novel strategy of assembling maghemite (γ-Fe2O3) nanoparticles (NPs) in mesoporous silica host for developing a highly efficient MRI contrast probe. Shrinkage of hydrophobic environment due to the continuous evaporation of... Read More

Metallome of cerebrovascular endothelial cells infected with Toxoplasma gondii using μ-XRF imaging and inductively coupled plasma mass spectrometry (2018)
Journal Article
Al-sandaqchi, A. T., Brignell, C., Collingwood, J. F., Geraki, K., Mirkes, E. M., Kong, K., …Elsheikha, H. M. (2018). Metallome of cerebrovascular endothelial cells infected with Toxoplasma gondii using μ-XRF imaging and inductively coupled plasma mass spectrometry. Metallomics, 1401-1414 . doi:10.1039/C8MT00136G

In this study, we measured the levels of elements in human brain microvascular endothelial cells (ECs) infected with T. gondii. ECs were infected with tachyzoites of the RH strain, and at 6, 24, and 48 hours post infection (hpi), the intracellular co... Read More

Current fluctuations in boundary-driven quantum spin chains (2018)
Journal Article
Carollo, F., Garrahan, J. P., & Lesanovsky, I. (2018). Current fluctuations in boundary-driven quantum spin chains. Physical Review B, 98(9), (1-9). doi:10.1103/physrevb.98.094301. ISSN 2469-9950

Boundary-driven quantum spin chains are paradigmatic nonequilibrium systems featuring the presence of particle currents. In general, it may not be possible to distinguish an incoherent type of particle transport from a truly quantum coherent one thro... Read More

Shear bands and the evolving microstructure in a drying colloidal film studied with scanning μ-SAXS (2018)
Journal Article
Yang, B., Smith, N. D., Johannes, A., Burghammer, M., & Smith, M. I. (2018). Shear bands and the evolving microstructure in a drying colloidal film studied with scanning μ-SAXS. Scientific Reports, 8, doi:10.1038/s41598-018-31405-6. ISSN 2045-2322

Shear localisation in thin bands is an important process involved in the plastic deformation of materials subject to stress. This process is often sensitive to the sample microstructure (amorphous / crystalline). Here we show using the scanning μ-SAX... Read More

Faint satellite population of the NGC-3175 Group – a Local Group analogue (2018)
Journal Article
Kondapally, R., Russell, G. A., Conselice, C. J., & Penny, S. J. (2018). Faint satellite population of the NGC-3175 Group – a Local Group analogue. Monthly Notices of the Royal Astronomical Society, 481(2), (1759-1773). doi:10.1093/mnras/sty2333. ISSN 0035-8711

In this paper, we identify and study the properties of low-mass dwarf satellites of a nearby Local Group analogue – the NGC-3175 galaxy group with the goal of investigating the nature of the lowest mass galaxies and the ‘Missing Satellites’ problem.... Read More

The Astropy Project: building an open-science project and status of the v2.0 core package (2018)
Journal Article
Price-Whelan, A., Sipőcz, B., Günther, H., Lim, P., Crawford, S., Conseil, S., …Bamford, S. (2018). The Astropy Project: building an open-science project and status of the v2.0 core package. Astronomical Journal, 156(3), doi:10.3847/1538-3881/aabc4f. ISSN 0004-6256

The Astropy Project supports and fosters the development of open-source and openly developed Python packages that provide commonly needed functionality to the astronomical community. A key element of the The Astropy Project supports and fosters the d... Read More

Galaxy Cluster Mass Reconstruction Project – IV. Understanding the effects of imperfect membership on cluster mass estimation (2018)
Journal Article
Wojtak, R., Old, L., Mamon, G., Pearce, F., de Carvalho, R., Sifón, C., …Tempel, E. (2018). Galaxy Cluster Mass Reconstruction Project – IV. Understanding the effects of imperfect membership on cluster mass estimation. Monthly Notices of the Royal Astronomical Society, 481(1), (324-340). doi:10.1093/mnras/sty2257. ISSN 0035-8711

The primary difficulty in measuring dynamical masses of galaxy clusters from galaxy data lies in the separation between true cluster members from interloping galaxies along the line of sight. We study the impact of membership contamination and incomp... Read More

Mid-IR plasmonic compound with gallium oxide toplayer formed by GaSb oxidation in water (2018)
Journal Article
Bomers, M., Di Paola, D. M., Cerutti, L., Michel, T., Arinero, R., Tournié, E., …Taliercio, T. (2018). Mid-IR plasmonic compound with gallium oxide toplayer formed by GaSb oxidation in water. Semiconductor Science and Technology, 33(9), doi:10.1088/1361-6641/aad4bf

The oxidation of GaSb in aqueous environments has gained interest by the advent of plasmonic antimonide-based compound semiconductors for molecular sensing applications. This work focuses on quantifying the GaSb–water reaction kinetics by studying a... Read More

Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells (2018)
Journal Article
Sinjab, F., Awuah, D., Gibson, G., Padgett, M., Ghaemmaghami, A. M., & Notingher, I. (in press). Holographic optical trapping Raman micro-spectroscopy for non-invasive measurement and manipulation of live cells. Optics Express, ISSN 1094-4087

We present a new approach for combining holographic optical tweezers with confocal Raman spectroscopy. Multiple laser foci, generated using a liquid-crystal spatial light modulator, are individually used for both optical trapping and excitation of sp... Read More

A machine-learning method for identifying multiwavelength counterparts of submillimeter galaxies: training and testing using AS2UDS and ALESS (2018)
Journal Article
An, F. X., Stach, S., Smail, I., Swinbank, A., Almaini, O., Simpson, C., …Coppin, K. (2018). A machine-learning method for identifying multiwavelength counterparts of submillimeter galaxies: training and testing using AS2UDS and ALESS. Astrophysical Journal, 862(2), doi:10.3847/1538-4357/aacdaa. ISSN 1538-4357

We describe the application of supervised machine-learning algorithms to identify the likely multiwavelength counterparts to submillimeter sources detected in panoramic, single-dish submillimeter surveys. As a training set, we employ a sample of 695... Read More