Now showing items 419-438 of 1358

  • Fast and Highly Sensitive Ionic-Polymer-Gated WS2 -Graphene Photodetectors 

    Mehew, JD; Unal, S; Torres Alonso, E; Jones, GF; Fadhil Ramadhan, S; Craciun, MF; Russo, S (Wiley, 2017-04-18)
    The combination of graphene with semiconductor materials in heterostructure photodetectors enables amplified detection of femtowatt light signals using micrometer-scale electronic devices. Presently, long-lived charge traps ...
  • Ferrite-filled cavities for compact planar resonators 

    Keatley, Paul Steven; Durrant, C.J.; Berry, S.J.; Sirotkin, Evgeny; Hibbins, Alastair P.; Hicken, R.J. (American Institute of Physics (AIP) -, 2014)
    Sub-wavelength metallic planar cavities, closed at one end, have been constructed by wrapping aluminium foil around teflon or ferrite slabs. Finite cavity width perturbs the fundamental cavity mode frequency of ferrite-filled ...
  • Ferromagnetic microswimmers 

    Ogrin, Feodor Y.; Petrov, Peter G.; Winlove, C. Peter (American Physical Society, 2008)
    We propose a model for a novel artificial low Reynolds number swimmer, based on the magnetic interactions of a pair of ferromagnetic particles: one with hard and the other with soft magnetic properties, connected by a ...
  • Ferromagnetic resonance of patterned chromium dioxide thin films grown by selective area chemical vapour deposition 

    Durrant, CJ; Jokubaitis, M; Yu, W; Mohamad, H; Shelford, LR; Keatley, PS; Xiao, G; Hicken, RJ (American Institute of Physics (AIP), 2015-05-07)
    A selective area chemical vapour deposition technique has been used to fabricate continuous and patterned epitaxial CrO2 thin films on (100)-oriented TiO2 substrates. Precessional magnetization dynamics were stimulated ...
  • Ferrous iron formation following the co-aggregation of ferric iron and the Alzheimer's disease peptide β-amyloid (1-42). 

    Everett, J.; Cespedes, E.; Shelford, L.R.; Exley, C.; Collingwood, J.F.; Dobson, J.; van der Laan, Gerrit; Jenkins, C.A.; Arenholz, E.; Telling, N.D. (Royal Scociety, 2014)
    For decades, a link between increased levels of iron and areas of Alzheimer's disease (AD) pathology has been recognized, including AD lesions comprised of the peptide β-amyloid (Aβ). Despite many observations of this ...
  • Fiber-optical analog of the event horizon 

    Philbin, Thomas G.; Kuklewicz, Chris; Robertson, Scott; Hill, Stephen; König, Friedrich; Leonhardt, Ulf (American Association for the Advancement of Science, 2008)
    The physics at the event horizon resembles the behavior of waves in moving media. Horizons are formed where the local speed of the medium exceeds the wave velocity. We used ultrashort pulses in microstructured optical ...
  • Field-Controlled Phase-Rectified Magnonic Multiplexer 

    Davies, CS; Sadovnikov, AV; Grishin, SV; Sharaevsky, YP; Nikitov, SA; Kruglyak, VV (Institute of Electrical and Electronics Engineers (IEEE), 2015-06-18)
    The mechanism used to alter the features of propagating spin waves is a key component underpinning the functionality of high-frequency magnonic devices. Here, using experiment and micromagnetic simulations, we demonstrate ...
  • Field-controlled phase-rectified magnonic multiplexer [includes .mif files for use with the micromagnetic simulation tool 'Object-Oriented Micro-Magnetic Framework' (OOMMF)] 

    Davies, Carl S.; Sadovnikov, Alexandr V.; Grishin, Sergey V.; Sharaevskii, Yurii; Nikitov, Sergei; Kruglyak, V.V. (Institute of Electrical and Electronics Engineers (IEEE), 2015-06-18)
    The mechanism used to alter the features of propagating spin waves is a key component underpinning the functionality of high frequency magnonic devices. Here, using experiment and micromagnetic simulations, we demonstrate ...
  • Fingering convection and cloudless models for cool brown dwarf atmospheres 

    Tremblin, Pascal; Amundsen, David S.; Mourier, P.; Baraffe, I.; Chabrier, G.; Drummond, B.; Homeier, D.; Venot, O. (American Astronomical Society, 2015-04-27)
    This work aims to improve the current understanding of the atmospheres of brown dwarfs, especially cold ones with spectral type T and Y, whose modeling is a current challenge. Silicate and iron clouds are believed to ...
  • Finite conductance governs the resonance transmission of thin metal slits at microwave frequencies 

    Suckling, James R.; Hibbins, Alastair P.; Lockyear, Matthew J.; Preist, T. W.; Sambles, J. Roy; Lawrence, Christopher R. (American Physical Society, 2004)
    Fabry-Perot–like resonant transmission of microwave radiation through a single subwavelength slit in a thick aluminum plate is quantified for a range of slit widths. Surprisingly, and in contrast to previous studies [e.g., ...
  • First AMBER/VLTI Observations of Hot Massive Stars 

    Petrov, RG; Millour, F; Chesneau, O; Weigelt, G; Bonneau, D; Stee, P; Kraus, S; Mourard, D; Meilland, A; Vannier, M; Malbet, F; Lisi, F; Antonelli, P; Kern, P; Beckmann, U; Lagarde, S; Perraut, K; Gennari, S; Coarer, EL; Driebe, T; Accardo, M; Robbe-Dubois, S; Ohnaka, K; Busoni, S; Roussel, A; Zins, G; Behrend, J; Ferruzi, D; Bresson, Y; Duvert, G; Nussbaum, E; Marconi, A; Feautrier, P; Dugué, M; Chelli, A; Tatulli, E; Heininger, M; Delboulbe, A; Bonhomme, S; Schertl, D; Testi, L; Mathias, P; Monin, J-L; Gluck, L; Hofmann, KH; Salinari, P; Puget, P; Clausse, JM; Fraix-Burnet, D; Foy, R; Isella, A (Springer, 2007)
    AMBER is the first near infrared focal instrument of the VLTI. It combines three telescopes and produces spectrally resolved interferometric measures. This paper discusses some preliminary results of the first scientific ...
  • First application of an axial speed of sound measurement technique in the monitoring of tendon healing 

    Vergari, C; Pourcelot, P; Ravary-Plumioën, B; Dupays, AG; Jacquet, S; Denoix, JM; Mitton, D; Laugier, P; Crevier-Denoix, N (Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2011-08-24)
    N/A
  • First principles electronic and elastic properties of fresnoite Ba2TiSi2O8 (article) 

    Taylor, NT; Davies, FH; Hepplestone, SP (IOP Publishing, 2017-12-18)
    Electronic, structural and elastic properties of fresnoite, Ba2TiSi2O8 (BTSO), are obtained via first principles calculations. The electronic properties having been comparatively analysed using both the generalised gradient ...
  • First Results from BISTRO: A SCUBA-2 Polarimeter Survey of the Gould Belt 

    Ward-Thompson, D; Pattle, K; Bastien, P; Furuya, RS; Kwon, W; Lai, S; Qiu, K; Berry, D; Choi, M; Coudé, S; Di Francesco, J; Hoang, T; Franzmann, E; Friberg, P; Graves, SF; Greaves, JS; Houde, M; Johnstone, D; Kirk, JM; Koch, PM; Kwon, J; Lee, CW; Li, D; Matthews, BC; Mottram, JC; Parsons, H; Pon, A; Rao, R; Rawlings, M; Shinnaga, H; Sadavoy, S; van Loo, S; Aso, Y; Byun, D; Eswaraiah, C; Chen, H; Chen, MC-Y; Chen, WP; Ching, T; Cho, J; Chrysostomou, A; Chung, EJ; Doi, Y; Drabek-Maunder, E; Eyres, SPS; Fiege, J; Friesen, RK; Fuller, G; Gledhill, T; Griffin, MJ; Gu, Q; Hasegawa, T; Hatchell, J; Hayashi, SS; Holland, W; Inoue, T; Inutsuka, S; Iwasaki, K; Jeong, I; Kang, J; Kang, M; Kang, S; Kawabata, KS; Kemper, F; Kim, G; Kim, J; Kim, K; Kim, KH; Kim, M; Kim, S; Lacaille, KM; Lee, J; Lee, S; Li, D; Li, H; Liu, H; Liu, J; Liu, S; Liu, T; Lyo, A-; Mairs, S; Matsumura, M; Moriarty-Schieven, GH; Nakamura, F; Nakanishi, H; Ohashi, N; Onaka, T; Peretto, N; Pyo, T; Qian, L; Retter, B; Richer, J; Rigby, A; Robitaille, J; Savini, G; Scaife, AMM; Soam, A; Tamura, M; Tang, Y; Tomisaka, K; Wang, H; Wang, J; Whitworth, AP; Yen, H; Yoo, H; Yuan, J; Zhang, C; Zhang, G; Zhou, J; Zhu, L; André, P; Dowell, CD; Falle, S; Tsukamoto, Y (American Astronomical Society / IOP Publishing, 2017-06-14)
    We present the first results from the B-fields In STar-forming Region Observations (BISTRO) survey, using the Sub-millimetre Common-User Bolometer Array 2 camera, with its associated polarimeter (POL-2), on the James Clerk ...
  • First results from VLTI near-infrared interferometry on high-mass young stellar objects 

    Kraus, S; Hofmann, K-H; Menten, KM; Schertl, D; Weigelt, G; Wyrowski, F; Meilland, A; Perraut, K; Petrov, R; Robbe-Dubois, S; Schilke, P; Testi, L (Society of Photo-optical Instrumentation Engineers (SPIE), 2010-07-22)
    Due to the recent dramatic technological advances, infrared interferometry can now be applied to new classes of objects, resulting in exciting new science prospects, for instance, in the area of high-mass star formation. ...
  • First Results with the IOTA3 Imaging Interferometer: The Spectroscopic Binaries λ Virginis and WR 140 

    Monnier, JD; Traub, WA; Schloerb, FP; Millan-Gabet, R; Berger, J-P; Pedretti, E; Carleton, NP; Kraus, S; Lacasse, MG; Brewer, M; Ragland, S; Ahearn, A; Coldwell, C; Haguenauer, P; Kern, P; Labeye, P; Lagny, L; Malbet, F; Malin, D; Maymounkov, P; Morel, S; Papaliolios, C; Perraut, K; Pearlman, M; Porro, IL; Schanen, I; Souccar, K; Torres, G; Wallace, G (American Astronomical Society, 2004-01-29)
    We report the first spatially resolved observations of the spectroscopic binaries λ Vir and WR 140, including the debut of aperture-synthesis imaging with the upgraded three-telescope IOTA interferometer. Using IONIC-3, a ...
  • First Visual Orbit for the Prototypical Colliding-wind Binary WR 140 

    Monnier, JD; Zhao, M; Pedretti, E; Millan-Gabet, R; Berger, J; Schloerb, F; Traub, W; ten Brummelaar, T; McAlister, H; Ridgway, S; Turner, N; Sturmann, L; Sturmann, J; Baron, F; Tannirkulam, A; Kraus, S; Williams, P (American Astronomical Society / IOP Publishing, 2011-10-25)
    Wolf-Rayet (WR) stars represent one of the final stages of massive stellar evolution. Relatively little is known about this short-lived phase and we currently lack reliable mass, distance, and binarity determinations for ...
  • First VLTI infrared spectro-interferometry on GCIRS 7. Characterizing the prime reference source for Galactic center observations at highest angular resolution 

    Pott, J-U; Eckart, A; Glindemann, A; Kraus, S; Schödel, R; Ghez, AM; Woillez, J; Weigelt, G (EDP Sciences for European Southern Observatory (ESO), 2008-08)
    Context. The massive black hole Sgr A* at the very center of the Galaxy, and its immediate stellar and non-stellar environment, hav e been studied in the past decade with increasing intensity and wavelength coverage, ...
  • First-principles investigation of superconductivity in the body-centred tetragonal LaRu2P2 

    Karaca, E; Karadaǧ, S; Tütüncü, HM; Srivastava, GP; Uǧur (Taylor & Francis, 2016-06-07)
    © 2016 Informa UK Limited, trading as Taylor & Francis Group.We have investigated the ground state and electronic properties of LaRu2P2 in the ThCr2Si2 structure using a generalised gradient approximation of the density ...
  • First-principles structure determination of interface materials: The NixInAs nickelides 

    Schusteritsch, G; Hepplestone, SP; Pickard, CJ (American Physical Society, 2015-08-05)
    We present here a first-principles study of the ternary compounds formed by Ni, In, and As, a material of great importance for self-aligned metallic contacts in next-generation InAs-based MOS transistors. The approach we ...