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Related papers: Microwave Sensing of Elemental Sulfur Deposition i…

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Sub-millimetre observations suggest that the filaments of interstellar clouds have rather uniform widths and can be described with the so-called Plummer profiles. The shapes of the filament profiles are linked to their physical state.…

Astrophysics of Galaxies · Physics 2015-06-05 M. Juvela , J. Malinen , T. Lunttila

While amorphous materials are often approximated to have a statistically homogeneous atomic structure, they frequently exhibit localized structural heterogeneity that challenges simplified models. This study uses 4D scanning transmission…

Angle resolved photoemission spectroscopy is used to observe changes in the electronic structure of bulk-doped topological insulator Cu$_x$Bi$_2$Se$_3$ as additional copper atoms are deposited onto the cleaved crystal surface. Carrier…

Superconductivity · Physics 2015-06-16 L. A. Wray , S. Xu , M. Neupane , A. V. Fedorov , Y. S. Hor , R. J. Cava , M. Z. Hasan

Spin accumulation is generated by injecting an unpolarized charge current into a channel of GaAs two-dimensional electron gas subject to an in-plane magnetic field, then measured in a non-local geometry. Unlike previous measurements that…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 H. Ebrahimnejad , Y. Ren , S. M. Frolov , I. Adagideli , J. A. Folk , W. Wegscheider

A radiation detector based on plasma display panel technology, which is the principal component of plasma television displays is presented. Plasma Panel Sensor (PPS) technology is a variant of micropattern gas radiation detectors. The PPS…

Distributed strain sensing using a straight optical-fibre cable suffers from a decreased strain senstivity away from the fibre's axis. In this study, the directional senstivity is enhanced via sinusoidally shaping the fibre that is embedded…

Instrumentation and Detectors · Physics 2020-04-17 Musab Al Hasani , Guy Drijkoningen , Thomas Reinsch

Near Ambient Pressure Scanning Photoelectron Microscopy adds to the widely used photoemission spectroscopy and its chemically selective capability two key features: (i) the possibility to chemically analyse samples in a more realistic…

Microseismicity in subsurface geologic environments, such as sandstone gas reservoirs, is expected in the presence of liquid or gas injection. Although difficult to predict, the potential for microseismic events is important to field-scale…

We report on a pilot study of a novel observing technique, defocussed transmission spectroscopy, and its application to the study of exoplanet atmospheres using ground-based platforms. Similar to defocussed photometry, defocussed…

Earth and Planetary Astrophysics · Physics 2014-11-18 J. R. Burton , C. A. Watson , P. Rodriguez-Gil , I. Skillen , S. P. Littlefair , V. S. Dhillon , D. Pollacco

We investigate the fine structure of the sunspot penumbra by means of a model that allows for a flux tube in horizontal pressure balance with the magnetic background atmosphere in which it is embedded. We apply this model to…

Astrophysics · Physics 2009-11-10 J. M. Borrero , A. Lagg , S. K. Solanki , M. Collados

We study the underpotential deposition of Cu on single-crystal Au(111) electrodes in sulfate-containing electrolytes by a combination of computational statistical-mechanics based lattice-gas modeling and experiments. The experimental…

Condensed Matter · Physics 2009-10-28 Jun Zhang , Yung-Eun Sung , P. A. Rikvold , A. Wieckowski

Chemical vapor deposited graphene is nanopatterned by a spherical block-copolymer etch mask. The use of spherical rather than cylindrical block copolymers allows homogeneous patterning of cm-scale areas without any substrate surface…

Mesoscale and Nanoscale Physics · Physics 2014-03-20 Alberto Cagliani , David Mackenzie , Lisa Katharina Tschammer , Filippo Pizzocchero , Kristoffer Almdal , Peter Bøggild

We explore the combined impact of sulfur vacancies and electronic interactions on the optical properties of monolayer MoS$_2$. First, we present a generalized Anderson-Hubbard Hamiltonian that accounts for both randomly distributed sulfur…

Disordered Systems and Neural Networks · Physics 2018-06-06 C. E. Ekuma , D. Gunlycke

The abundance of volatile sulfur in dense clouds is long-standing problem in studies of the physics and chemistry of star-forming regions. Sulfur is an important species because its low ionization potential may possibly make it an important…

Astrophysics of Galaxies · Physics 2022-03-14 P. Hily-Blant , G. Pineau des Forêts , A. Faure , F. Lique

The effective mass approximation is used to consider plasma and magnetoplasma waves in an electron system on the surface of the semiconductor cylindrical nanotube. The electron-electron coupling is taken into account in the random phase…

Mesoscale and Nanoscale Physics · Physics 2009-02-24 A. M. Ermolaev , G. I. Rashba

Electric field instruments carried by spacecraft (SC) are complementary to dedicated dust detectors by registering transient voltage perturbations caused by impact-generated plasma. The signal waveform contains information about the…

Space Physics · Physics 2023-04-04 Mitchell M. Shen , Zoltan Sternovsky , David M. Malaspina

We present a lab-on-chip experiment to accurately measure losses of superconducting microstrip lines at microwave and sub-mm wavelengths. The microstrips are fabricated from NbTiN, which is deposited using reactive magnetron sputtering, and…

Instrumentation and Detectors · Physics 2021-08-26 S. Hähnle , K. Kouwenhoven , B. Buijtendorp , A. Endo , K. Karatsu , D. J. Thoen , V. Murugesan , J. J. A. Baselmans

Recent observations have revealed a gallery of substructures in the dust component of nearby protoplanetary discs, including rings, gaps, spiral arms, and lopsided concentrations. One interpretation of these substructures is the existence…

Earth and Planetary Astrophysics · Physics 2020-01-08 Chao-Chin Yang , Zhaohuan Zhu

In this study we investigate the stability limits of Micromegas detectors upon irradiation with alpha particles. The results are obtained with meshes with different optical transparency and geometry of wires. The measurements are performed…

Instrumentation and Detectors · Physics 2023-06-13 P. Gasik , T. Waldmann , L. Fabbietti , T. Klemenz , L. Lautner , B. Ulukutlu

We theoretically study the effect of stripe-like superconducting inclusions on the non-linear resistivity in single crystals. Even when the stripe orientation varies throughout the sample between two orthogonal directions due to twinning,…

Superconductivity · Physics 2011-12-19 Rodrigo A. Muniz , Ivar Martin
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