Results 51 to 60 of about 148,253 (282)

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Three-dimensional numerical simulations of the pulsar magentoshere: Preliminary results

, 2008
We investigate the three-dimensional structure of the pulsar magnetosphere through time-dependent numerical simulations of a magnetic dipole that is set in rotation.
Contopoulos, Ioannis, Kalapotharakos, Constantinos   +1 more
core   +1 more source

The GROWTH Marshal: A Dynamic Science Portal for Time-domain Astronomy [PDF]

Publications of the Astronomical Society of the Pacific, 2019
Published in PASP Focus Issue on the Zwicky Transient Facility (doi: 10.1088/1538-3873/aafbc2).
M. M. Kasliwal, C. Cannella, A. Bagdasaryan, T. Hung, U. Feindt, L. P. Singer, M. Coughlin, C. Fremling, R. Walters, D. Duev, R. Itoh, R. M. Quimby   +11 more
openaire   +3 more sources

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

A Late-time Radio Survey of Type Ia-CSM Supernovae with the Very Large Array

The Astrophysical Journal
Type Ia-CSM supernovae (SNe) are a rare and peculiar subclass of thermonuclear SNe characterized by emission lines of hydrogen or helium, indicative of high-density circumstellar medium (CSM). Their implied mass-loss rates of ∼10 ^−4 –10 ^−1 M _⊙ yr ^−1 (
Olivia Griffith, Grace Showerman, Sumit K. Sarbadhicary, Chelsea E. Harris, Laura Chomiuk, Jesper Sollerman, Peter Lundqvist, Javier Moldón, Miguel Pérez- Torres, Erik C. Kool, Takashi J. Moriya   +10 more
doaj   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

A 2.9 hr Periodic Radio Transient with an Optical Counterpart

The Astrophysical Journal Letters
We present a long-period radio transient (GLEAM-X J0704−37) discovered to have an optical counterpart, consistent with a cool main-sequence star of spectral type M3. The radio periodicity occurs at the longest period yet found, 2.9 hr, and was discovered
N. Hurley-Walker, S. J. McSweeney, A. Bahramian, N. Rea, C. Horváth, S. Buchner, A. Williams, B. W. Meyers, Jay Strader, Elias Aydi, Ryan Urquhart, Laura Chomiuk, T. J. Galvin, F. Coti Zelati, Matthew Bailes   +14 more
doaj   +1 more source

Exploring Time Domain Multi-Messenger Astronomy through the Virtual Observatory [PDF]

Proceedings of The New Era of Multi-Messenger Astrophysics — PoS(Asterics2019), 2019
What do Cepheid stars, Binary Neutron stars, Supernovae explosions and Active Galactic Nuclei have in common? They are all variable objects, although the physical processes and the associated time-scales that govern their variability can be very different (pulsations, collapse, accretion, bursts, … with characteristic time-scales from milliseconds to ...
Nebot, Ada, Allen, Mark G., Fernique, Pierre, Baumann, Matthieu, Boch, Thomas, Bot, Caroline, Derriere, Sebastien, Genova, Francoise, Lutz, Katharina, Morris, Dave   +9 more
openaire   +2 more sources

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source