All Outputs (756)

Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures (2018)
Journal Article
Skelland, C., Ostler, T., Westmoreland, S. C., Evans, R. F., Chantrell, R. W., Yano, M., …Hrkac, G. (2018). Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures. IEEE Transactions on Magnetics, 54(11), Article 2103405. https://doi.org/10.1109/TMAG.2018.2832603

We investigated the atomic fill site probability distributions across supercell structures of RT12-x Ti (R = Nd and Sm; T = Fe and Co). We use a combined molecular dynamics and Boltzmann distribution approach to extrapolate the probability distributi... Read More about Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures.

The local rotation curve of the Milky Way based on SEGUE and RAVE data (2018)
Journal Article
Sysoliatina, K., Just, A., Golubov, O., Parker, Q. A., Grebel, E. K., Kordopatis, G., Zwitter, T., Bland-Hawthorn, J., Gibson, B. K., Kunder, A., Munari, U., Navarro, J., Reid, W., Seabroke, G., Steinmetz, M., & Watson, F. (2018). The local rotation curve of the Milky Way based on SEGUE and RAVE data. Astronomy and Astrophysics, 614, A63. https://doi.org/10.1051/0004-6361/201731143

Aims. We construct the rotation curve of the Milky Way in the extended solar neighbourhood using a sample of Sloan Extension for Galactic Understanding and Exploration (SEGUE) G-dwarfs. We investigate the rotation curve shape for the presence of any... Read More about The local rotation curve of the Milky Way based on SEGUE and RAVE data.

X-ray absorption study of platinum and palladium atoms in argon matrices: Evidence for platinum in a substitutional site and a short Pd–Ar interaction (2018)
Journal Article
Harris, N., Sakr, A. K., Snelling, H. V., & Young, N. A. (2018). X-ray absorption study of platinum and palladium atoms in argon matrices: Evidence for platinum in a substitutional site and a short Pd–Ar interaction. Journal of molecular structure, 1172, 80-88. https://doi.org/10.1016/j.molstruc.2018.06.024

The Pt L3-edge X-ray absorption spectrum of Pt atoms generated in a hollow cathode sputtering device and trapped in an Ar matrix yielded a PtAr distance of 3.78(4) Å with a coordination number of ca. 12 which confirms the evidence from electronic abs... Read More about X-ray absorption study of platinum and palladium atoms in argon matrices: Evidence for platinum in a substitutional site and a short Pd–Ar interaction.

Evolution of starburst galaxies in the Illustris simulation (2018)
Journal Article
Wilkinson, C. L., Pimbblet, K. A., Stott, J. P., Few, C. G., & Gibson, B. K. (2018). Evolution of starburst galaxies in the Illustris simulation. Monthly notices of the Royal Astronomical Society, 479(1), 758-767. https://doi.org/10.1093/mnras/sty1493

© 2018 The Author(s). Published by Oxford University Press on behalf of The Royal Astronomical Society. There is a consensus in the literature that starburst galaxies are triggered by interaction events. However, it remains an open question as to wha... Read More about Evolution of starburst galaxies in the Illustris simulation.

Competition of lattice and spin excitations in the temperature dependence of spin-wave properties (2018)
Journal Article
Di Gennaro, M., Miranda, A. L., Ostler, T. A., Romero, A. H., & Verstraete, M. J. (2018). Competition of lattice and spin excitations in the temperature dependence of spin-wave properties. Physical Review B, 97(21), Article 214417. https://doi.org/10.1103/PhysRevB.97.214417

The interplay of magnons and phonons can induce strong temperature variations in the magnetic exchange interactions, leading to changes in the magnetothermal response. This is a central mechanism in many magnetic phenomena, and in the new field of Sp... Read More about Competition of lattice and spin excitations in the temperature dependence of spin-wave properties.

Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches (2018)
Journal Article
Cuadrado, R., Oroszlány, L., Deák, A., Ostler, T. A., Meo, A., Chepulskii, R. V., …Chantrell, R. W. (2018). Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches. Physical Review Applied, 9(5), Article 054048. https://doi.org/10.1103/PhysRevApplied.9.054048

Fe/MgO-based magnetic tunnel junctions are among the most promising candidates for spintronic devices due to their high thermal stability and high tunneling magnetoresistance. Despite its apparent simplicity, the nature of the interactions between th... Read More about Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches.

Does cage quantum delocalisation influence the translation-rotational bound states of molecular hydrogen in clathrate hydrate? (2018)
Journal Article
Benoit, D. M., Lauvergnat, D., & Scribano, Y. (2018). Does cage quantum delocalisation influence the translation-rotational bound states of molecular hydrogen in clathrate hydrate?. Faraday Discussions, 212, 533-546. https://doi.org/10.1039/c8fd00087e

In this study, we examine the effect of a flexible description of the clathrate hydrate framework on the translation-rotation (TR) eigenstates of guest molecules such as molecular hydrogen. Traditionally, the water cage structure is assumed to be rig... Read More about Does cage quantum delocalisation influence the translation-rotational bound states of molecular hydrogen in clathrate hydrate?.

193 nm ArF laser ablation and patterning of chitosan thin films (2018)
Journal Article
Aesa, A., & Walton, C. (2018). 193 nm ArF laser ablation and patterning of chitosan thin films. Applied physics. A, Materials science & processing, 124(6), Article 444. https://doi.org/10.1007/s00339-018-1859-z

This paper reports laser ablation studies on spin coated bio polymer chitosan films, β-l,4-1inked 2-amino-2-deoxy-D-glucopyranose. Chitosan has been irradiated using an ArF laser emitting at 193 nm. An ablation threshold of FT = 858 mJcm-2 has been... Read More about 193 nm ArF laser ablation and patterning of chitosan thin films.

The origin of the Milky Way's halo age distribution (2018)
Journal Article
Carollo, D., Tissera, P. B., Beers, T. C., Gudin, D., Gibson, B. K., Freeman, K. C., & Monachesi, A. (2018). The origin of the Milky Way's halo age distribution. Astrophysical journal. Letters, 859(1), L7. https://doi.org/10.3847/2041-8213/aac2dc

© 2018. The American Astronomical Society.. We present an analysis of the radial age gradients for the stellar halos of five Milky Way (MW) mass-sized systems simulated as part of the Aquarius Project. The halos show a diversity of age trends, reflec... Read More about The origin of the Milky Way's halo age distribution.

Coma Berenices: The First Evidence for Incomplete Vertical Phase-mixing in Local Velocity Space with RAVE—Confirmed with Gaia DR2 (2018)
Journal Article
Monari, G., Famaey, B., Minchev, I., Antoja, T., Bienaymé, O., Gibson, B. K., Grebel, E. K., Kordopatis, G., McMillan, P., Navarro, J., Parker, Q. A., Quillen, A. C., Reid, W., Seabroke, G., Siebert, A., Steinmetz, M., Wyse, R. F. G., & Zwitter, T. (2018). Coma Berenices: The First Evidence for Incomplete Vertical Phase-mixing in Local Velocity Space with RAVE—Confirmed with Gaia DR2. Research Notes of the AAS, 2(2), 32. https://doi.org/10.3847/2515-5172/aac38e

Chua mem-components for adaptive RF metamaterials (2018)
Presentation / Conference Contribution
Georgiou, J., Kossifos, K. M., Antoniades, M. A., Jaafar, A., & Kemp, N. T. (2018, May). Chua mem-components for adaptive RF metamaterials. Presented at 2018 IEEE International Symposium on Circuits and Systems (ISCAS)

Chua's mem-components are ideal for creating adaptive metasurfaces for manipulating EM waves given that they hold their state without external biases. In this paper, we propose a generic adaptive reactive element that is in fact a memcapacitor/memind... Read More about Chua mem-components for adaptive RF metamaterials.

An Optically-Programmable Absorbing Metasurface (2018)
Presentation / Conference Contribution
Kossifos, K. M., Antoniades, M. A., Georgiou, J., Jaafar, A. H., & Kemp, N. T. (2018, May). An Optically-Programmable Absorbing Metasurface. Presented at 2018 IEEE International Symposium on Circuits and Systems (ISCAS)

A tunable metasurface absorber is presented in this work using an optically-programmable capacitor as the tuning element. The tuning element does not employ conventional semiconductor technologies to operate but rather a bases its tuning by changing... Read More about An Optically-Programmable Absorbing Metasurface.

Evolution of N/O ratios in galaxies from cosmological hydrodynamical simulations (2018)
Journal Article
Vincenzo, F., & Kobayashi, C. (2018). Evolution of N/O ratios in galaxies from cosmological hydrodynamical simulations. Monthly notices of the Royal Astronomical Society, 478(1), 155–166. https://doi.org/10.1093/mnras/sty1047

We study the redshift evolution of the gas-phase O/H and N/O abundances, both (i) for individual ISM regions within single spatially-resolved galaxies and (ii) when dealing with average abundances in the whole ISM of many unresolved galaxies. We make... Read More about Evolution of N/O ratios in galaxies from cosmological hydrodynamical simulations.

Correlations between age, kinematics, and chemistry as seen by the RAVE survey (2018)
Journal Article
Wojno, J., Kordopatis, G., Steinmetz, M., McMillan, P., Binney, J., Famaey, B., Monari, G., Minchev, I., Wyse, R. F., Antoja, T., Siebert, A., Carrillo, I., Bland-Hawthorn, J., Grebel, E. K., Zwitter, T., Bienaymé, O., Gibson, B., Kunder, A., Munari, U., Navarro, J., …Seabroke, G. (2018). Correlations between age, kinematics, and chemistry as seen by the RAVE survey. Monthly notices of the Royal Astronomical Society, 477(4), 5612-5624. https://doi.org/10.1093/mnras/sty1016

We explore the connections between stellar age, chemistry, and kinematics across a Galactocentric distance of 7.5 < R(kpc) < 9.0, using a sample of ∼12 000 intermediate-mass (FGK) turn-off stars observed with the RAdial Velocity Experiment (RAVE) sur... Read More about Correlations between age, kinematics, and chemistry as seen by the RAVE survey.

Improved distances and ages for stars common to TGAS and RAVE (2018)
Journal Article
McMillan, P. J., Kordopatis, G., Kunder, A., Binney, J., Wojno, J., Zwitter, T., Steinmetz, M., Bland-Hawthorn, J., Gibson, B. K., Gilmore, G., Grebel, E. K., Helmi, A., Munari, U., Navarro, J. F., Parker, Q. A., Seabroke, G., Watson, F., & Wyse, R. F. (2018). Improved distances and ages for stars common to TGAS and RAVE. Monthly notices of the Royal Astronomical Society, 477(4), 5279-5300. https://doi.org/10.1093/MNRAS/STY990

We combine parallaxes from the first Gaia data release with the spectrophotometric distance estimation framework for stars in the fifth RAVE survey data release. The combined distance estimates are more accurate than either determination in isolation... Read More about Improved distances and ages for stars common to TGAS and RAVE.

Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation (2018)
Journal Article
Barsanti, S., Owers, M. S., Brough, S., Davies, L. J. M., Driver, S. P., Gunawardhana, M. L. P., Holwerda, B. W., Liske, J., Loveday, J., Pimbblet, K. A., Robotham, A. S. G., & Taylor, E. N. (2018). Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation. The Astrophysical journal, 857(1), 71. https://doi.org/10.3847/1538-4357/aab61a

© 2018. The American Astronomical Society. All rights reserved. We explore how the group environment may affect the evolution of star-forming galaxies. We select 1197 Galaxy And Mass Assembly groups at 0.05 ≤ z ≤ 0.2 and analyze the projected phase s... Read More about Galaxy and mass assembly (GAMA): Impact of the group environment on galaxy star formation.

The impact of (n, γ) reaction rate uncertainties of unstable isotopes near N = 50 on the i-process nucleosynthesis in He-shell flash white dwarfs (2018)
Journal Article
Denissenkov, P., Perdikakis, G., Herwig, F., Schatz, H., Ritter, C., Pignatari, M., Jones, S., Nikas, S., & Spyrou, A. (2018). The impact of (n, γ) reaction rate uncertainties of unstable isotopes near N = 50 on the i-process nucleosynthesis in He-shell flash white dwarfs. Journal of Physics G: Nuclear and Particle Physics, 45(5), 055203. https://doi.org/10.1088/1361-6471/aabb6e

The first-peak s-process elements Rb, Sr, Y and Zr in the post-AGB star Sakurai's object (V4334 Sagittarii) have been proposed to be the result of i-process nucleosynthesis in a post-AGB very-late thermal pulse event. We estimate the nuclear physics... Read More about The impact of (n, γ) reaction rate uncertainties of unstable isotopes near N = 50 on the i-process nucleosynthesis in He-shell flash white dwarfs.

The effect of the condensed-phase environment on the vibrational frequency shift of a hydrogen molecule inside clathrate hydrates (2018)
Journal Article
Powers, A., Scribano, Y., Lauvergnat, D., Mebe, E., Benoit, D. M., & Bačić, Z. (2018). The effect of the condensed-phase environment on the vibrational frequency shift of a hydrogen molecule inside clathrate hydrates. The Journal of chemical physics, 148(14), 144304. https://doi.org/10.1063/1.5024884

© 2018 Author(s). We report a theoretical study of the frequency shift (redshift) of the stretching fundamental transition of an H 2 molecule confined inside the small dodecahedral cage of the structure II clathrate hydrate and its dependence on the... Read More about The effect of the condensed-phase environment on the vibrational frequency shift of a hydrogen molecule inside clathrate hydrates.

Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity (2018)
Journal Article
Chen, L., Vivier, E., Eling, C. J., Babra, T. S., Bouillard, J. S. G., Adawi, A. M., Benoit, D. M., Hartl, F., Colquhoun, H. M., Efremova, O. A., & Greenland, B. W. (2018). Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity. Synthetic Metals, 241, 31-38. https://doi.org/10.1016/j.synthmet.2018.03.019

© 2018 An iterative synthesis has been used to produce conjugated, monodisperse, viologen-based aromatic oligomers containing up to 12 aromatic/heterocyclic rings. The methoxy-substituted oligomers were soluble in common organic solvents and could be... Read More about Conjugated, rod-like viologen oligomers: Correlation of oligomer length with conductivity and photoconductivity.

The influence of solvent representation on nuclear shielding calculations of protonation states of small biological molecules (2018)
Journal Article
Roggatz, C. C., Lorch, M., & Benoit, D. M. (2018). The influence of solvent representation on nuclear shielding calculations of protonation states of small biological molecules. Journal of chemical theory and computation : JCTC, 14(5), 2684-2695. https://doi.org/10.1021/acs.jctc.7b01020

In this study, we assess the influence of solvation on the accuracy and reliability of isotropic nuclear magnetic shielding calculations for amino acids in comparison to experimental data. We focus particularly on the performance of solvation methods... Read More about The influence of solvent representation on nuclear shielding calculations of protonation states of small biological molecules.