Results 61 to 70 of about 776,248 (299)

Above Room Temperature Ferroelectricity in Epitaxially Strained KTaO3

Advanced Materials, EarlyView.
Through precise epitaxial engineering, the cubic and paraelectric KTaO3${\rm KTaO}_3$ is transformed into a robust ferroelectric. By leveraging lattice‐mismatched substrates to apply controlled epitaxial strain, a stable ferroelectric ground‐state is achieved with a transition temperature as high as 475 K, establishing KTaO3${\rm KTaO}_3$ as a highly ...
Tobias Schwaigert, Salva Salmani‐Rezaie, Sankalpa Hazra, Utkarsh Saha, Maya Ramesh, Aiden Ross, Betül Pamuk, Long‐Qing Chen, David A. Muller, Darrell G. Schlom, Venkatraman Gopalan, Kaveh Ahadi   +11 more
wiley   +1 more source

Specific Position of Halogen in Crystalline TADF Scintillators Enables Efficient Triplet Harvesting Through Vibrational Modulation of Spin–Orbit Coupling

Advanced Materials, EarlyView.
Specific ortho‐halogenation transforms crystalline TADF emitters into efficient organic scintillators. Fluorine reduces the effective singlet–triplet separation, while chlorine combines near‐degenerate excited states with vibrational modulation of spin–orbit coupling.
Illia E. Serdiuk, Michał Mońka, Artur Sikorski, Konrad J. Drozdowski, Mohanad S. Eid, Krzysztof Wisniewski, Damian Trzybiński, Marcin E. Witkowski, Winicjusz Drozdowski   +8 more
wiley   +1 more source

Astronomy Education Research Down Under [PDF]

, 2005
A review of research conducted in Australasia into students' concept development in astronomy identifies a number of learning difficulties pertinent to astronomy, such as the lack of prior knowledge, intuitive or naive beliefs, juxtaposition and frames ...
Ginns, Ian S., Broadfoot, John, Ginns, Ian, Broadfoot, John M.   +3 more
core  

Division x: Radio Astronomy

, 2012
This triennium has seen a phenomenal investment in development of observational radio astronomy facilities in all parts of the globe at a scale that significantly impacts the international community.
Hills, Richard, Rendong, Nan, Carilli, Christopher, Giovannini, Gabriele, Rubio, Monica, Taylor, Russ, Jonas, Justin, Hirabayashi, Hisashi, Shastri, Prajval, Lazio, Joseph, Chapman, Jessica, Morganti, Raffaella   +11 more
core   +1 more source

Multi‐Stimuli Responsive Angstrom‐Scale Two‐Dimensional Channels of Natural Layered Materials

Advanced Materials, EarlyView.
Å‐scale ion channels naturally formed within the interlayers of vermiculite clay enable ionic current modulation in response to mechanical, chemical, and electrical stimuli. Coupled pressure and electric fields induce reversible streaming current (Istream) polarity inversion, which is explained by a modified surface charge regulation model.
Raj Kumar Gogoi, Arghyadeep Paul, Ankit Bhardwaj, Hiran Jyothilal, Narayana R. Aluru, Boya Radha   +5 more
wiley   +1 more source

Extreme color–magnitude variability: Connection to changing-look active galactic nuclei

Astronomy & Astrophysics
Context. Changing-look active galactic nuclei (CL-AGNs) challenge the unified model of AGNs and offer key insights into the physics of the accretion processes of super-massive black holes.
Zhu Litao, Wang Zhongxiang, Gupta Alok C., Devanand P. U., Yang Ruoheng, Huang Qiangmeng, Lang Man, Li Jiawen   +7 more
doaj   +1 more source

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

Advanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian, Petric Marc Ruya, Ipek Ozyurt, Ali Atyabi, Samuel Eyley, Wim Thielemans, Alexander Volodin, Riccardo Alessandri, Xing Yang   +8 more
wiley   +1 more source

Fill in the blanks in the parameter space of observational astronomy. [PDF]

Innovation (Camb), 2023
Qian L.
europepmc   +1 more source

Research on teaching astronomy in the planetarium

, 2017
From a noted specialist in astronomy education and outreach, this Brief provides an overview of the most influential discipline-based science education research literature now guiding contemporary astronomy teaching.
Tatge, Coty B, Timothy F. Slater, Tatge, Coty B., Slater, Timothy F., Slater, Timothy F, Coty B. Tatge   +5 more
core   +1 more source

Poly(Alkoxythiophene) Rod‐Coil Block Copolymers for Organic Electrochemical Transistors

Advanced Materials, EarlyView.
We present the first synthesis of poly(3‐alkoxythiophene) rod‐coil block copolymers as a new architecture for OMIECs. Incorporating PEG and PLLA coils can enhance device performance beyond the homopolymer. The figure‐of‐merit depends uniquely on coil length.
Junfu Tian, Wentao Shan, Rachael Found, Paola Mantegazza, Francesco Leoni, Andreas W. Erhardt, Yuyun Yao, Matus Stredansky, Arianna Magni, Adam Marks, Elena Chulanova, Zeinab Hamid, Yueying Huang, Wanpeng Lu, Xian'e Li, Baopu Zhang, Qingpei Wan, Christina Kousseff, Matilde Concilio, Ruth Theresia Arwani, Caroline A. Ross, Sahika Inal, Giovanni Costantini, Iain McCulloch   +23 more
wiley   +1 more source