All Outputs (2196)

Constraining the temperature–density relation of the intergalactic medium with the Lyman α and β forests (2015)
Journal Article
Boera, E., Murphy, M. T., Becker, G. D., & Bolton, J. S. (2016). Constraining the temperature–density relation of the intergalactic medium with the Lyman α and β forests. Monthly Notices of the Royal Astronomical Society, 456(1), L79-L83. https://doi.org/10.1093/mnrasl/slv172

The post-reionization thermal state of the intergalactic medium is characterized by a power-law relationship between temperature and density, with a slope determined by the parameter γ. We describe a new method to measure γ using the ratio of flux cu... Read More about Constraining the temperature–density relation of the intergalactic medium with the Lyman α and β forests.

Propulsion of a two-sphere swimmer (2015)
Journal Article
Klotsa, D., Baldwin, K. A., Hill, R. J., Bowley, R., & Swift, M. R. (2015). Propulsion of a two-sphere swimmer. Physical Review Letters, 115(24), Article 248102. https://doi.org/10.1103/PhysRevLett.115.248102

We describe experiments and simulations demonstrating the propulsion of a neutrally-buoyant swimmer that consists of a pair of spheres attached by a spring, immersed in a vibrating fluid. The vibration of the fluid induces relative motion of the sphe... Read More about Propulsion of a two-sphere swimmer.

Interfacial contribution to thickness dependent in-plane anisotropic magnetoresistance (2015)
Journal Article
Tokaç, M., Wang, M., Jaiswal, S., Rushforth, A. W., Gallagher, B. L., Atkinson, D., & Hindmarch, A. T. (2015). Interfacial contribution to thickness dependent in-plane anisotropic magnetoresistance. AIP Advances, 5(12), 127108. https://doi.org/10.1063/1.4937556

We have studied in-plane anisotropic magnetoresistance (AMR) in cobalt films with overlayers having designed electrically interface transparency. With an electrically opaque cobalt/overlayer interface, the AMR ratio is shown to vary in inverse propor... Read More about Interfacial contribution to thickness dependent in-plane anisotropic magnetoresistance.

Reionisation and High-Redshift Galaxies: The View from Quasar Absorption Lines (2015)
Journal Article
Becker, G. D., Bolton, J. S., & Lidz, A. (2015). Reionisation and High-Redshift Galaxies: The View from Quasar Absorption Lines. Publications of the Astronomical Society of Australia, 32, Article e045. https://doi.org/10.1017/pasa.2015.45

Determining when and how the first galaxies reionised the intergalactic medium promises to shed light on both the nature of the first objects and the cosmic history of baryons. Towards this goal, quasar absorption lines play a unique role by probing... Read More about Reionisation and High-Redshift Galaxies: The View from Quasar Absorption Lines.

Toward printing molecular nanostructures from microstructured samples in ultrahigh vacuum (2015)
Journal Article
Nacci, C., Saywell, A., Troadec, C., Deng, J., Willinger, M. G., Joachim, C., & Grill, L. (2015). Toward printing molecular nanostructures from microstructured samples in ultrahigh vacuum. Journal of Vacuum Science and Technology B, 34(1), https://doi.org/10.1116/1.4936886

Transferring molecular nanostructures from one surface to another in ultrahigh vacuum (UHV) by mechanical contact might be a possible route to avoid the severe limitations of in situ molecular synthesis on technologically relevant template surfaces.... Read More about Toward printing molecular nanostructures from microstructured samples in ultrahigh vacuum.

Physisorption controls the conformation and density of states of an adsorbed porphyrin (2015)
Journal Article
Jarvis, S. P., Taylor, S., Baran, J. D., Thompson, D., Saywell, A., Mangham, B., …Moriarty, P. (2015). Physisorption controls the conformation and density of states of an adsorbed porphyrin. Journal of Physical Chemistry C, 119(50), 27982-27994. https://doi.org/10.1021/acs.jpcc.5b08350

Conformational changes caused by adsorption can dramatically affect a molecule’s properties. Despite extensive study, however, the exact mechanisms underpinning conformational switching are often unclear. Here we show that the conformation of a proto... Read More about Physisorption controls the conformation and density of states of an adsorbed porphyrin.

Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV–far-IR) and the low-zenergy budget (2015)
Journal Article
Driver, S. P., Wright, A. H., Andrews, S. K., Davies, L. J., Kafle, P. R., Lange, R., …Williams, R. (2016). Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV–far-IR) and the low-zenergy budget. Monthly Notices of the Royal Astronomical Society, 455(4), https://doi.org/10.1093/mnras/stv2505

We present the Galaxy And Mass Assembly (GAMA) Panchromatic Data Release (PDR) constituting over 230 deg2 of imaging with photometry in 21 bands extending from the far-UV to the far-IR. These data complement our spectroscopic campaign of over 300k ga... Read More about Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV–far-IR) and the low-zenergy budget.

Wavelength self-calibration and sky subtraction for Fabry–Pérot interferometers: applications to OSIRIS (2015)
Journal Article
Weinzirl, T., Aragón-Salamanca, A., Bamford, S., Rodríguez del Pino, B., Gray, M., & Chies-Santos, A. (2015). Wavelength self-calibration and sky subtraction for Fabry–Pérot interferometers: applications to OSIRIS. Monthly Notices of the Royal Astronomical Society, 454(2), https://doi.org/10.1093/mnras/stv2230

We describe techniques concerning wavelength calibration and sky subtraction to maximize the scientific utility of data from tunable filter instruments. While we specifically address data from the Optical System for Imaging and low Resolution Integra... Read More about Wavelength self-calibration and sky subtraction for Fabry–Pérot interferometers: applications to OSIRIS.

Colon wall motility: comparison of novel quantitative semi-automatic measurements using cine MRI (2015)
Journal Article
Hoad, C., Menys, A., Garsed, K., Marciani, L., Hamy, V., Murray, K., …Gowland, P. A. (2016). Colon wall motility: comparison of novel quantitative semi-automatic measurements using cine MRI. Neurogastroenterology and Motility, 28(3), 327-335. https://doi.org/10.1111/nmo.12727

Background

Recently, cine magnetic resonance imaging (MRI) has shown promise for visualizing movement of the colonic wall, although assessment of data has been subjective and observer dependent. This study aimed to develop an objective and semi-au... Read More about Colon wall motility: comparison of novel quantitative semi-automatic measurements using cine MRI.

Towards quantitative molecular mapping of cells by Raman microscopy: using AFM for decoupling molecular concentration and cell topography (2015)
Journal Article
Boitor, R., Sinjab, F., Strohbuecker, S., Sottile, V., & Notingher, I. (2016). Towards quantitative molecular mapping of cells by Raman microscopy: using AFM for decoupling molecular concentration and cell topography. Faraday Discussions, 187, https://doi.org/10.1039/C5FD00172B

Raman micro-spectroscopy (RMS) is a non-invasive technique for imaging live cells in-vitro. However, obtaining quantitative molecular information from the Raman spectra is difficult because the intensity of a Raman band is proportional to the number... Read More about Towards quantitative molecular mapping of cells by Raman microscopy: using AFM for decoupling molecular concentration and cell topography.

Antiferromagnetic structure in tetragonal CuMnAs thin films (2015)
Journal Article
Wadley, P., Hills, V. A., Shahedkhah, M. R., Edmonds, K. W., Campion, R. P., Novák, V., …Jungwirth, T. (2015). Antiferromagnetic structure in tetragonal CuMnAs thin films. Scientific Reports, 5(1), Article 17079. https://doi.org/10.1038/srep17079

Tetragonal CuMnAs is an antiferromagnetic material with favourable properties for applications in spintronics. Using a combination of neutron diffraction and x-ray magnetic linear dichroism, we determine the spin axis and magnetic structure in tetrag... Read More about Antiferromagnetic structure in tetragonal CuMnAs thin films.

Imaging gray matter with concomitant null point imaging from the phase sensitive inversion recovery sequence (2015)
Journal Article
Mougin, O., Abdel-Fahim, R., Dineen, R., Pitiot, A., Evangelou, N., & Gowland, P. (2016). Imaging gray matter with concomitant null point imaging from the phase sensitive inversion recovery sequence. Magnetic Resonance in Medicine, 76(5), 1512-1516. https://doi.org/10.1002/mrm.26061

Purpose

To present an improved three-dimensional (3D) interleaved phase sensitive inversion recovery (PSIR) sequence including a concomitantly acquired new contrast, null point imaging (NPI), to help detect and classify abnormalities in cortical g... Read More about Imaging gray matter with concomitant null point imaging from the phase sensitive inversion recovery sequence.

An Apoferritin-based Drug Delivery System for the Tyrosine Kinase Inhibitor Gefitinib (2015)
Journal Article
Kuruppu, A. I., Zhang, L., Collins, H. M., Turyanska, L., Thomas, N. R., & Bradshaw, T. D. (2015). An Apoferritin-based Drug Delivery System for the Tyrosine Kinase Inhibitor Gefitinib. Advanced Healthcare Materials, 4(18), 2816-2821. https://doi.org/10.1002/adhm.201500389

Scaling dimensions of higher-charge monopoles at deconfined critical points (2015)
Journal Article
Sreejith, G., & Powell, S. (2015). Scaling dimensions of higher-charge monopoles at deconfined critical points. Physical Review B, 92(18), Article 184413. https://doi.org/10.1103/PhysRevB.92.184413

The classical cubic dimer model has a columnar ordering transition that is continuous and described by a critical Anderson–Higgs theory containing an SU(2)-symmetric complex field minimally coupled to a noncompact U(1) gauge theory. Defects in the di... Read More about Scaling dimensions of higher-charge monopoles at deconfined critical points.

Emergent devil's staircase without particle-hole symmetry in Rydberg quantum gases with competing attractive and repulsive interactions (2015)
Journal Article
Lan, Z., Minář, J., Levi, E., Li, W., & Lesanovsky, I. (2015). Emergent devil's staircase without particle-hole symmetry in Rydberg quantum gases with competing attractive and repulsive interactions. Physical Review Letters, 115, Article 203001. https://doi.org/10.1103/PhysRevLett.115.203001

The devil's staircase is a fractal structure that characterizes the ground state of one-dimensional classical lattice gases with long-range repulsive convex interactions. Its plateaus mark regions of stability for specific filling fractions which are... Read More about Emergent devil's staircase without particle-hole symmetry in Rydberg quantum gases with competing attractive and repulsive interactions.

Mechanism of periodic height variations along self-aligned VLS-grown planar nanostructures (2015)
Journal Article
Steele, J., Horvat, J., Lewis, R., Henini, M., Fan, D., Mazur, Y., …Salamo, G. (in press). Mechanism of periodic height variations along self-aligned VLS-grown planar nanostructures. Nanoscale, 7(48), https://doi.org/10.1039/c5nr06676j

In this study we report in-plane nanotracks produced by molecular-beam-epitaxy (MBE) exhibiting lateral self-assembly and unusual periodic and out-of-phase height variations across their growth axes. The nanotracks are synthesized using bismuth segre... Read More about Mechanism of periodic height variations along self-aligned VLS-grown planar nanostructures.

Toward Mid-Infrared, Subdiffraction, Spectral-Mapping of Human Cells and Tissue: SNIM (Scanning Near-Field Infrared Microscopy) Tip Fabrication (2015)
Journal Article
Neate, N., Fay, M., Parmenter, C., Athanasiou, G. S., Ernst, J., Furniss, D., …Seddon, A. B. (2016). Toward Mid-Infrared, Subdiffraction, Spectral-Mapping of Human Cells and Tissue: SNIM (Scanning Near-Field Infrared Microscopy) Tip Fabrication. Journal of Lightwave Technology, 34(4), 1212-1219. https://doi.org/10.1109/JLT.2015.2496786

Scanning near-field infrared microscopy (SNIM) potentially enables subdiffraction, broadband mid-infrared (MIR:3–25-μm wavelength range) spectral-mapping of human cells and tissue for real-time molecular sensing, with prospective use in disease diagn... Read More about Toward Mid-Infrared, Subdiffraction, Spectral-Mapping of Human Cells and Tissue: SNIM (Scanning Near-Field Infrared Microscopy) Tip Fabrication.

Evolution of the brightest cluster galaxies: the influence of morphology, stellar mass and environment (2015)
Journal Article
Zhao, D., Aragón-Salamanca, A., & Conselice, C. J. (2015). Evolution of the brightest cluster galaxies: the influence of morphology, stellar mass and environment. Monthly Notices of the Royal Astronomical Society, 453(4), https://doi.org/10.1093/mnras/stv1940

Using a sample of 425 nearby brightest cluster galaxies (BCGs) from von der Linden et al., we study the relationship between their internal properties (stellar masses, structural parameters and morphologies) and their environment. More massive BCGs t... Read More about Evolution of the brightest cluster galaxies: the influence of morphology, stellar mass and environment.

Linking the structural properties of galaxies and their star formation histories with STAGES (2015)
Journal Article
Hoyos, C., Aragón-Salamanca, A., Gray, M. E., Wolf, C., Maltby, D. T., Bell, E. F., …Jogee, S. (2016). Linking the structural properties of galaxies and their star formation histories with STAGES. Monthly Notices of the Royal Astronomical Society, 455(1), 295-307. https://doi.org/10.1093/mnras/stv2321

We study the links between star formation history and structure for a large mass-selected galaxy sample at 0.05 ≤ zphot ≤ 0.30. The galaxies inhabit a very broad range of environments, from cluster cores to the field. Using Hubble Space Telescope (HS... Read More about Linking the structural properties of galaxies and their star formation histories with STAGES.

Coherence in a cold atom photon transistor (2015)
Journal Article
Li, W., & Lesanovsky, I. (2015). Coherence in a cold atom photon transistor. Physical Review A, 92(4), Article 043828. https://doi.org/10.1103/PhysRevA.92.043828

Recent experiments have realized an all-optical photon transistor using a cold atomic gas. This approach relies on electromagnetically induced transparency (EIT) in conjunction with the strong interaction among atoms excited to high-lying Rydberg sta... Read More about Coherence in a cold atom photon transistor.