Results 141 to 150 of about 232,000 (280)

High‐Sensitivity Perovskite γ‐Ray Detectors Enhanced by Device Engineering Toward Energy Spectroscopy Imaging

open access: yesAdvanced Science, EarlyView.
Optimized electrode configuration in perovskite γ‐ray detectors achieves enhanced energy resolution from 7% to 1.9% by reshaping bias electric fields and reducing noise. A novel spectral‐enhanced imaging strategy is developed, utilizing spectral dimensions to improve image contrast and quality.
Ken Qin   +11 more
wiley   +1 more source

Geometrically Confined Strain Engineering of MoS2 via Quasi‐Van Der Waals Recrystallization of Gold Nanopillars

open access: yesAdvanced Science, EarlyView.
Geometrically confined quasi‐van der Waals (qvdW) recrystallization of patterned gold induces localized tensile strain in monolayer MoS2, enhancing its optoelectronic performance. The strain, induced during annealing after hBN encapsulation, leads to a 65‐fold increase in photoluminescence and a two‐order magnitude boost in mobility, offering a ...
Kyungmin Yang   +7 more
wiley   +1 more source

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

open access: yesThe Astronomical Journal
Kepler-51 is a ≲1 Gyr old Sun-like star hosting three transiting planets with radii ≈6–9 R _⊕ and orbital periods ≈45–130 days. Transit timing variations (TTVs) measured with past Kepler and Hubble Space Telescope (HST) observations have been ...
Kento Masuda   +51 more
doaj   +1 more source

Enhanced Spectral Tunability by Sub‐10 nm Nanogaps in Graphene‐Metal Hybrid Metasurfaces

open access: yesAdvanced Science, EarlyView.
A tunable mid‐infrared metasurface integrating graphene and metal antenna arrays with sub‐10 nm nanogaps is presented, overcoming the ≈20 nm limit of conventional fabrication. The enhanced spectral tuning range and modulation depth are enabled by combining electron‐beam lithography, thin metal deposition, and directional ion milling to precisely define
Fei Han   +8 more
wiley   +1 more source

One‐Size‐Fits‐All: A Universal Binding Site for Single‐Layer Metal Cluster Self‐Assembly

open access: yesAdvanced Science, EarlyView.
A universal strategy enables the formation of single‐layer metal clusters (SLMC) across 21 elements by harnessing vacancy defects as binding sites. Crucially, synthesis occurs without reactive species, preventing site passivation and ensuring strong metal–surface bonding.
Emerson C. Kohlrausch   +16 more
wiley   +1 more source

Enhanced Superconductivity in X4H15 Compounds via Hole‐Doping at Ambient Pressure

open access: yesAdvanced Science, EarlyView.
Hole doping in X4H15 hydrides significantly enhances superconductivity, with X3 + compounds reaching Tc values near 50 K due to strong electron–phonon coupling. A viable route is proposed by doping thermodynamically unstable X43+H${\rm X}^{3+}_4{\rm H}$15 to control the charge‐compensated YZr3H15 compound.
Kun Gao   +5 more
wiley   +1 more source

Analyses of Crawford’s uvby β calibrations using the pulsational variations of FG Vir. Veröffentlichungen der Kommission für Astronomie|Communications in Asteroseismology|Communications in Asteroseismology 162 162|

open access: yes, 2011
Crawford’s uvby ß calibration method is examined for A-type stars by comparing it with the pulsational variations of the observable m1, c1 and MV for the δ Scuti star FG Vir. The fit between the calibration values of m1 and MV and the respective measurements for FG Vir are tested as a function of temperature based on 3068 4-colour values taken at the ...
openaire  

Impact of Controlled Magneto‐Structural Coupling in MnCoGe‐Based Compounds on the Design of Multifunctional Materials for Technological Advances

open access: yesAdvanced Science, EarlyView.
In this work, the authors systematically investigate how Ni substitution regulates the magneto‐structural coupling and their functional consequences in the MnCoGe‐based compounds. Geometric nonlinear theory analysis reveals that Ni modification change of magneto‐structural transition can alleviate the lattice incompatibility, thereby broadening the ...
Kang Liu   +10 more
wiley   +1 more source

Leukemic Cells Hijack Stromal Bioelectricity to Reprogram the Bone Marrow Niche via CaV1.2‐Dependent Mechanisms

open access: yesAdvanced Science, EarlyView.
Leukemic blasts induce membrane depolarization in mesenchymal stromal cells (MSCs), contributing to a dysfunctional niche that favors leukemia progression. Here, it is demonstrated that restoring the expression of CaV1.2 calcium channel in AML‐MSCs repolarizes their membrane potential, reprogramming them toward a healthy phenotype.
Ambra Da Ros   +11 more
wiley   +1 more source

Reversing Hydrogen‐Related Loss in α‐Ta Thin Films for Quantum Device Fabrication

open access: yesAdvanced Science, EarlyView.
α‐Tantalum is one of the best materials for superconducting quantum computers because of its stable, low microwave‐loss oxide. However, excessive amounts of hydrogen can enter the material during fabrication. This study shows that hydrogen degrades quantum device performance, while annealing the device in ultra‐high vacuum removes hydrogen and fully ...
D. P. Lozano   +12 more
wiley   +1 more source

Home - About - Disclaimer - Privacy