Results 141 to 150 of about 16,732,055 (288)

Ag Nanowire‐Integrated MoS2/ZnO Heterojunctions for Highly Efficient Photogenerated Charge Transfer

Advanced Electronic Materials, Volume 11, Issue 6, May 2025.
A versatile strategy is reported for fabricating multi‐dimensional heterojunctions with significantly improved charge transfer capability. By integrating Ag nanowires with a MoS2/ZnO heterojunction, a fourfold increase in surface photovoltage is achieved, reaching 200 mV under visible light illumination.
Anh Thi Nguyen, Jungyoon Cho, Malkeshkumar Patel, Duc Anh Vu, Jungeun Song, Dongseok Suh, Ambrose Seo, Joondong Kim, Dong‐Wook Kim   +8 more
wiley   +1 more source

Spin‐Polarized Interfaces Redirect CO2 Reduction From CO to Formate

Angewandte Chemie, EarlyView.
The chiral electrocatalyst exploits the CISS effect to establish a spin‐polarized interface that selectively promotes formate production during CO2 reduction while effectively suppressing the competing hydrogen evolution. ABSTRACT Achieving high product selectivity in electrocatalytic carbon dioxide reduction (CO2RR) remains a critical challenge due to
Fan He, Xingxu Yan, Xiaoqing Pan, Yong Yan, Jing Gu   +4 more
wiley   +2 more sources

How Can the Optical Variation Properties of Active Galactic Nuclei Be Unbiasedly Measured?

The Astrophysical Journal
The variability of active galactic nuclei (AGNs) is ubiquitous, but has not yet been understood. Measuring the optical variation properties of AGNs, such as the variation timescale and amplitude, and then correlating them with their fundamental physical ...
Xu-Fan Hu, Zhen-Yi Cai, Jun-Xian Wang
doaj   +1 more source

Atomically Modulating Competing Exchange Interactions in Centrosymmetric Skyrmion Hosts GdRu2X2 (X = Si and Ge)

Advanced Electronic Materials, EarlyView.
Our work bridges the gap between skyrmion discovery and material design by demonstrating how atomic‐scale control of exchange interactions enables tunable skyrmion phase transitions in centrosymmetric magnetic metals. ABSTRACT Magnetic skyrmions are topologically protected spin states that hold promise for shaping the future of electronics.
Dasuni N. Rathnaweera, Xudong Huai, K. Ramesh Kumar, Michał J. Winiarski, Tomasz Klimczuk, Allana G. Iwanicki, Satya K. Kushwaha, Martin Mourigal, Tyrel M. McQueen, Thao T. Tran   +9 more
wiley   +1 more source

Tailoring Photochromism Beyond Human Eye Visibility: On/Off Switchable NIR Absorption in an Aluminosilicate

Angewandte Chemie, EarlyView.
A new photochromic material was developed. Its on/off‐switchable absorption band is situated completely outside the human eye's visibility, in the near‐infrared (NIR) region, a feature never reported before. The photochromism mechanism in this aluminosilicate is elucidated by combining experimental as well as computational results, and the material's ...
Bettiina Muurinen, Hannah Byron, Teppo Kreivilä, Roosa Vastamäki, Sami Vuori, Tomasz Galica, Ian P. Machado, Sari Granroth, Basit Ali, Maarit Karppinen, Ivo Heinmaa, Milica Todorović, Raphael Rullan, Stephan Steinmann, Tangui Le Bahers, Mika Lastusaari   +15 more
wiley   +2 more sources

A 34 yr Timing Solution of the Redback Millisecond Pulsar Terzan 5A

The Astrophysical Journal
We present a 34 yr timing solution of the redback pulsar system Terzan 5A (Ter5A). Ter5A, also known as B1744−24A or J1748−2446A, has a 11.56 ms pulse period, a ~0.1 M _⊙ dwarf companion star, and an orbital period of 1.82 hr.
Alexandra C. Rosenthal, Scott M. Ransom, Kyle A. Corcoran, Megan E. DeCesar, Paulo C. C. Freire, Jason W. T. Hessels, Michael J. Keith, Ryan S. Lynch, Andrew Lyne, David J. Nice, Ingrid H. Stairs, Ben Stappers, Jay Strader, Stephen E. Thorsett, Ryan Urquhart   +14 more
doaj   +1 more source

A critical evaluation of the new Hall of Astronomy of the University of Mexico Science Museum

, 2008
On December 2004, the newly designed astronomy hall at Universum, the science museum of the Universidad Nacional Autonoma de Mexico, was opened to the public.
Doddoli, Consuelo, Torres-Peimbert, Silvia   +1 more
core  

Low‐Power Control Of Resistance Switching Transitions in First‐Order Memristors

Advanced Electronic Materials, EarlyView.
Joule losses are a serious concern in modern integrated circuit design. In this regard, minimizing the energy necessary for programming memristors should be handled with care. This manuscript presents an optimal control framework, allowing to derive energy‐efficient programming voltage protocols for resistance switching devices. Following this approach,
Valeriy A. Slipko, Alon Ascoli, Fernando Corinto, Yuriy V. Pershin   +3 more
wiley   +1 more source

Exceptional Antimodes in Multi‐Drive Cavity Magnonics

Advanced Electronic Materials, EarlyView.
Driven‐dissipative cavity‐magnonics provides a flexible platform for engineering non‐Hermitian physics such as exceptional points. Here, using a four‐port, three‐mode system with controllable microwave interference, antimodes and coherent perfect extinction (CPE) are realized, enabling active tuning to antimode exceptional points.
Mawgan A. Smith, Ryan D. McKenzie, Alban Joseph, Robert L. Stamps, Rair Macêdo   +4 more
wiley   +1 more source

The State of Astronomy Education in the U.S.

, 1996
I would like to set the scene for the discussion that will follow in this book and bring up a few disturbing points which I believe any discussion about astronomy education will ultimately have to address.
Fraknoi, Andrew
core