Results 191 to 200 of about 1,120 (242)

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

Advanced Science, EarlyView.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

Prebiotic organic compounds in samples of asteroid Bennu indicate heterogeneous aqueous alteration. [PDF]

Proc Natl Acad Sci U S A
Mojarro A, Aponte JC, Dworkin JP, Elsila JE, Glavin DP, Connolly HC, Lauretta DS.   +6 more
europepmc   +1 more source

Dynamic Evolution‐Controlled Parabolic‐Shaped Microstructures for Ultra‐Black Surface via Self‐Assembled Microsphere Mask Etching

Advanced Science, EarlyView.
A robust, substrate‐independent fabrication approach overcomes the spectral and geometric limitations of traditional stray‐light suppression. By combining ink spray‐coating with self‐assembled microsphere mask etching, this method produces parabolic‐shaped microstructures on diverse planar and curved engineering components.
Yiming Li, Jianwei Wang, Guoxu Yu, Qunbo Lv, Yuan Ma, Jiadao Wang   +5 more
wiley   +1 more source

Field-particle energy transfer during chorus emissions in space. [PDF]

Nature
Liu CM, Zhao BN, Cao JB, Pollock CJ, Russell CT, Liu YY, Xing XN, Linqvist PA, Burch JL.   +8 more
europepmc   +1 more source

Mixed‐Polymer Hole Transport Layers Reinforce Au‐Anode Top Emitting Perovskite Light Emitting Diodes

Advanced Science, EarlyView.
Au‐anode corrosion is shown to occur rapidly under voltage bias in MAPbI3 perovskite LEDs. Resulting Au+ migration quickly leads to device shorting and unstable emission during constant current driving. We demonstrate that using a simple mixed‐polymer hole transport layer containing polyTPD and PVK can reduce Au‐corrosion and stabilize LED operation ...
James C. Loy, Jisu Hong, Tuo Hu, Xu He, Antoine Kahn, Barry P. Rand   +5 more
wiley   +1 more source

Quantum sensing for NASA science missions. [PDF]

EPJ Quantum Technol
Mercer CR, Montbach EN, Christe SD, Connerton RM, Podolski DA, Robinson MP, Perez MR.   +6 more
europepmc   +1 more source

A High‐Current‐Tolerant Multimetallic Phosphide Electrode for Alkaline Water Electrolysis Toward Industrial Conditions

Advanced Science, EarlyView.
A phosphide‐modified multimetallic HER electrode achieves industrial‐level performance with minimal noble‐metal content. It delivers 1.7 A cm−2 at 2.0 V in 6 M KOH at 70°C and operates stably for over 200 h at 500 mA cm−2. Phosphorus tuning of the electronic structure optimizes hydrogen adsorption, offering a durable, high‐rate pathway for alkaline ...
Yang Li, Chunling Lu, Biao Wang, Dongchao Qiu, Bingbing Niu, Tao Feng   +5 more
wiley   +1 more source

Magma Ocean Evolution at Arbitrary Redox State. [PDF]

J Geophys Res Planets
Nicholls H, Lichtenberg T, Bower DJ, Pierrehumbert R.   +3 more
europepmc   +1 more source

Inside‐Outside ROS Therapeutic Strategy Based on Piezoelectric Nano‐Urchin for Drug‐Resistant Bacteria Biofilm Infections

Advanced Science, EarlyView.
The contribution of this study lies not only in enabling effective treatment of drug‐resistant biofilm infections, but also in establishing a transferable therapeutic paradigm: Ultrasound‐triggered mechanical forces synergistically enhance piezoelectric polarization and nanozyme activity, driving functional ROS generation inside and outside biofilms ...
Xinjian Guo, Jin Yang, Mengjie An, Bingjie Lin, Tao Liu, Limin Zhang   +5 more
wiley   +1 more source

Southern Ocean seabird population shifts over the Holocene revealed by peat sequestration of mercury from guano. [PDF]

Proc Natl Acad Sci U S A
Li C, Roberts SJ, Grosjean M, Mestrot A, Wille M, Phillips RA, Enrico M, Bishop K, Skyllberg U, Mauquoy D, von Scheffer C, Theurer T, Muirhead D, Whittle A, Gallego-Sala A, Sonke JE, De Vleeschouwer F, Van der Putten N, Braconnot P, Marti O, Osterwalder S, Buchmann N, Frölicher T, Anthamatten E, Chiaia-Hernández AC, Zahajská P, Jeandel C, Saunders KM, Kwon SY, Wang D, Bindler R, Sime L, Hodgson DA.   +32 more
europepmc   +1 more source