Results 31 to 40 of about 965 (107)

Laser‐Induced Ultrafast Magnetic Phase Transition in 2D Van Der Waals Antiferromagnetic Heterostructures

Advanced Science, EarlyView.
In this work, ultrafast laser‐induced spin transfer and spin relaxation dynamics in 2D van der Waals antiferromagnetic CrI3/CrGeTe3 heterostructures are investigated. Laser excitation is demonstrated to induce pronounced interlayer nonequilibrium spin dynamics and ultrafast magnetic moment reconstruction, driving a transition from an antiferromagnetic (
Yang Wu, Fulu Zheng, San‐Dong Guo, Thomas Frauenheim, Zhaobo Zhou, Junjie He   +5 more
wiley   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

Advanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh, Adan Moallemi, Elham Mohseni Vadeghani, Samuel Tretjakov, Brianna Tsuyuki, Alexander Golab, Benjamin Rever, Wolfram Tetzlaff, Dena Shahriari   +8 more
wiley   +1 more source

Dynamical estimate of post main sequence stellar masses in 47 Tucanae

, 2016
We use the effects of mass segregation on the radial distribution of different stellar populations in the core of 47 Tucanae to find estimates for the masses of stars at different post main sequence evolutionary stages.
Goldsbury, Ryan, Heyl, Jeremy, Kalirai, Jason, Parada, Javiera, Richer, Harvey   +4 more
core   +1 more source

Progenitors of Type Ia Supernovae: Binary Stars with White Dwarf Companions [PDF]

, 2007
Type Ia SNe (SNe Ia) are thought to come from carbon-oxygen white dwarfs that accrete mass from binary companions until they approach the Chandrasekhar limit, ignite carbon, and undergo complete thermonuclear disruption. A survey of the observed types of
Aoki, Aoki, Aoki, Aoki, Arrieta, Balman, Barlow, Barstow, Beers, Beers, Belczynski, Benetti, Bitzaraki, Bond, Bond, Bond, Bond, Bond, Branch, Burleigh, Burleigh, Böhm-Vitense, Carney, Christlieb, Christlieb, Christlieb, Chu, Cohen, David Branch, David J. Jeffery, De Marco, E. Baron, Fedorova, Fleming, Friend, Gansicke, Geier, Gordon, Green, Greggio, Greiner, Greiner, Greiner, Greiner, Greiner, Hachisu, Hachisu, Hachisu, Hachisu, Hachisu, Hamuy, Han, Handler, Heber, Hillebrandt, Hillwig, Höflich, Iben, Iben, Iben, Iben, Iben, Iijima, Ivanova, Jorissen, Kahabka, Kahabka, Kahabka, Kahabka, Kalirai, Karovska, Kenyon, King, Kleinman, Kotak, Landsman, Langer, Lanz, Leibundgut, Leibundgut, Liebert, Liebert, Liebert, Lucatello, Luck, M. Parthasarathy, Maas, Marsh, Marsh, Martin-Pais, Maxted, McClure, McClure, McClure, McCook, Mochkovitch, Monnier, Morrison, Munari, Mürset, Napiwotzki, Narumi, Nomoto, Nomoto, Norris, North, Nugent, Oliveira, O’Brien, O’Dwyer, Patterson, Pereira, Pereira, Piersanti, Preston, Preston, Rappaport, Raymond, Reinsch, Reinsch, Reyniers, Ritter, Schaefer, Schaeidt, Schmidt, Schmidt, Schreiber, Shanley, Silvestri, Simon, Sion, Sneden, Sokoloski, Southwell, Starrfield, Starrfield, Steiner, Steiner, Stover, Szkody, Thoroughgood, Timmes, Tovmassian, Trümper, Uomoto, Van den Heuvel, Van Eck, Van Winckel, Van Winckel, Vennes, Vennes, Vennes, Wade, Weidemann, Whelan, White, Wickramasinghe, Williams, Woosley, Yoon, Yungelson, Yungelson   +161 more
core   +3 more sources

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

Characterization of blue and yellow straggler stars of Berkeley 39 using Swift/UVOT

We characterize blue straggler stars (BSS) and yellow straggler stars (YSS) of an open cluster (OC) Berkeley 39 using multi-wavelength observations including Swift/UVOT. Our analysis also makes use of ultraviolet (UV) data from GALEX, optical data from Gaia DR3 and Pan-STARRS, and infrared data from 2MASS, Spitzer/IRAC, and WISE.
Chand, Komal, Rao, Khushboo, Vaidya, Kaushar, Panthi, Anju   +3 more
openaire   +2 more sources

Electric Field‐Induced Hole‐ and Electron‐Type Flat Bands in Twisted Double Bilayer Graphene

Advanced Electronic Materials, EarlyView.
The electronic structure of twisted double bilayer graphene is visualized using angle‐resolved photoemission spectroscopy with micrometer spatial resolution at twists of 3.1∘$^\circ$ and 6.0∘$^\circ$ as a function of gate voltage. Tunable hybridization effects and flat band formation occurs between valence and conduction band states due to a finite ...
Zhihao Jiang, Dongkyu Lee, Alfred J. H. Jones, Youngju Park, Paulina Majchrzak, Kimberly Hsieh, Chakradhar Sahoo, Thomas S. Nielsen, Kenji Watanabe, Takashi Taniguchi, Philip Hofmann, Yong P. Chen, Jeil Jung, Søren Ulstrup   +13 more
wiley   +1 more source

Sub-Subgiants in the Old Open Cluster M67? [PDF]

, 2002
We report the discovery of two spectroscopic binaries in the field of the old open cluster M67 -- S1063 and S1113 -- whose positions in the color-magnitude diagram place them approximately 1 mag below the subgiant branch.
Belloni T., Belloni T., Bessel M. S., Catalano S., Claret A., David Latham, Flannery B. P., Frank Verbunt, Guillermo Torres, Hut P., Keivan Stassun, Malyuto V., Maureen van den Berg, Pasquini L., Rajamohan R., Robert D. Mathieu, Sanders W. L., Stpien K., van den Berg M., Verbunt F.   +19 more
core   +3 more sources

Mimicking a Light‐Harvesting Complex to Accelerate Photooxidation in Asymmetric Lipid Membrane Nanoreactors

Angewandte Chemie International Edition, EarlyView.
Biomimetic liposome nanoreactors mimicking natural light‐harvesting complexes enable efficient photooxidation of NADH. Membrane‐anchored fluorescein transfers energy via FRET to membrane anchored eosin Y, oxidizing NADH. While symmetric membranes show little improvement, asymmetric chromophore distribution enhances photooxidation rates by up to 27 ...
Julian Bösking, Roland E. P. Nau, Nico Alleva, Richard Jacobi, Tobias Meyer‐Zedler, Hannah Voßhenrich, Francesca Mazotta, Ingo Lieberwirth, David Ng, Michael Schmitt, Jürgen Popp, Leticia González, Tanja Weil, Andrea Pannwitz   +13 more
wiley   +1 more source

Isolation and Reactivity of a Square‐Planar Trisamido Silane

Angewandte Chemie International Edition, EarlyView.
We report the synthesis and comprehensive characterisation of a square‐planar Si(+IV) hydride supported by an unsymmetric, trianionic and dearomatised N,N,N‐pincer ligand. This system enables element–ligand cooperative reactivity as an alternative to silicon‐centred redox chemistry, illuminating a largely unexplored regime in high‐valent silicon ...
David M. J. Krengel, Xiaobai Wang, Christopher Golz, Regine Herbst‐Irmer, Oliver P. E. Townrow, Malte Fischer   +5 more
wiley   +1 more source