Results 231 to 240 of about 10,273 (293)

Negative Stiffness Induced and Controlled by Constriction

open access: yesphysica status solidi (b), EarlyView.
Structures with negative stiffness can be stabilized by constriction of external displacement. Furthermore, constriction can make a conventional positive stiffness material exhibit negative stiffness, either bidirectional or unidirectional (shown in the figure).
Elena Pasternak, Arcady V. Dyskin
wiley   +1 more source

Tunable Josephson Generator for Qubit Excitation and Two‐Tone Spectroscopy

open access: yesAdvanced Quantum Technologies, EarlyView.
A tunable on‐chip Josephson generator that enables direct qubit excitation has been presented. The device consists of a current‐biased Josephson junction and a superconducting resonator, forming a microwave source that operates at 4 K. Excitation of the qubit at 20 mK was done via a short coaxial line between the 4 K and 20 mK stages.
M. M. Khrenov   +17 more
wiley   +1 more source

In Situ MOF Pyrolysis Construction of Hierarchical Porous Co‐Nanoparticles/Carbon Cloth Composites for Enhanced Electromagnetic Wave Shielding and Absorption

open access: yesRare Metals, EarlyView.
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du   +9 more
wiley   +1 more source

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

open access: yesRare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang   +4 more
wiley   +1 more source

Topological‐defect‐featured order evolution of liquid crystals

open access: yesResponsive Materials, EarlyView.
This review provides a comprehensive introduction to the recent advances in the topological‐defect‐featured order evolution of liquid crystal (LCs), including the stimulus‐driven dynamics of defects in nematic LCs, topological defect morphological transformation during phase transitions, advanced strategies for regulating and applications of ...
Jin‐Bing Wu   +4 more
wiley   +1 more source

Large‐Area Metallic Nanohelices for Engineering Optical Chirality

open access: yesSmall, EarlyView.
By exploiting the nanoscale engineering of residual stresses in metallic thin films, this method enables scalable fabrication of submicrometer metallic helices with tunable geometry and material versatility. The resulting structures exhibit pronounced chiroptical responses across the mid‐ to near‐infrared range, offering a robust platform for chiral ...
Thu Hac Huong Le   +3 more
wiley   +1 more source

3D Printed Flexible Piezoelectric Sensors for Integrated Hybrid Electronics

open access: yesSmall, EarlyView.
A comprehensive 3D printing strategy can fabricate high performance piezoelectric transducers on various substrates for wearable and flexible electronics applications. Demonstrations include human‐machine interfaces, tactile electronic skin, and a multifunctional system integrating piezoelectric sensors with quantum dot light‐emitting diodes.
Daniel Wai Hou Ng   +8 more
wiley   +1 more source

High‐Yield Assembly of Plasmon‐Coupled Nanodiamonds Using DNA Origami for Tuned Emission

open access: yesSmall Structures, EarlyView.
Engineering assemblies of single‐photon emitters and plasmonic elements with nanometer precision opens pathways for quantum sensing and photonics applications. A surface functionalization strategy is established for grafting DNA onto nanodiamonds, and their placement on DNA origami is optimized to achieve yields above 50%.
Niklas Hansen   +7 more
wiley   +1 more source

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