Results 111 to 120 of about 488,813 (304)

Spatially-resolved probing of a non-equilibrium superconductor

open access: yes, 2011
Spatially resolved relaxation of non-equilibrium quasiparticles in a superconductor at ultra-low temperatures was experimentally studied. It was found that the quasiparticle injection through a tunnel junction results in modification of the shape of I-V ...
A. S. Vasenko   +6 more
core   +1 more source

Best proximity point theorems via measure of noncompactness and application to a system of Caputo fractional differential equations

open access: yesFilomat
In this article, we establish the best proximity point (pair) theorems for condensing operators defined on some new class of functions using the measure of noncompactness.
I. Haque, Javid Ali
semanticscholar   +1 more source

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes

open access: yesAdvanced Functional Materials, EarlyView.
The NNR‐n series of oligomeric nanographenes delivers exceptional emission performance. This work shows that this performance is originated by their ladder‐type structure, which effectively deactivates low‐frequency vibronic modes. This deactivation neglects the main pathway for non‐emissive deactivation, even in the near‐infrared region. The potential
Marcos Díaz‐Fernández   +12 more
wiley   +1 more source

First Stereoscopic Coronal Loop Reconstructions from Stereo Secchi Images

open access: yes, 2007
We present the first reconstruction of the three-dimensional shape of magnetic loops in an active region from two different vantage points based on simultaneously recorded images.
Feng, L.   +6 more
core   +1 more source

Near‐Field Optical Detection of Defect‐Stabilized Metallic Islands at the Verwey Transition in Fe3O4

open access: yesAdvanced Functional Materials, EarlyView.
Nanoscale metallic islands emerging across the Verwey transition in thin films of Fe3O4 are imaged using near‐field optical microscopy from mid‐infrared to terahertz frequencies. Recurring across thermal cycles, these disorder‐stabilized islands exhibit distinct transition temperatures.
Kajal Tiwari   +4 more
wiley   +1 more source

Anomalous Cooper pair interference on Bi2Te3 surface [PDF]

open access: yes, 2013
It is believed that the edges of a chiral p-wave superconductor host Majorana modes, relating to a mysterious type of fermions predicted seven decades ago.
Chen, Genghua   +11 more
core  

Long-range coherence and mesoscopic transport in N-S metallic structures

open access: yes, 1998
We review the mesoscopic transport in a diffusive proximity superconductor made of a normal metal (N) in metallic contact with a superconductor (S). The Andreev reflection of electrons on the N-S interface is responsible for the diffusion of electron ...
Andreev   +44 more
core   +1 more source

Beyond the Beam: Exploring Charged Particle Nanoprinting

open access: yesAdvanced Functional Materials, EarlyView.
Charged particle nanoprinting using electrons and ions is highly advanced, offering great potential for research and industry. However, challenges in precursor design and process optimization persist, but also offer great opportunities to drive nanofabrication innovations.
Nicolas Paul Jochmann   +2 more
wiley   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

Flexibility and Dynamicity Enhances and Controls Supramolecular Self‐Assembly of Zinc(II) Metallogels

open access: yesAdvanced Functional Materials, EarlyView.
Zinc(II) coordination complexes with tunable aryloxy‐imine ligands exhibit controllable supramolecular self‐assembly into hierarchical fibrous structures. Coordination‐driven stacking, not π–π interactions, enables gelation, dynamic assembly/disassembly, and enhanced nanomechanical properties.
Merlin R. Stühler   +10 more
wiley   +1 more source

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