Results 31 to 40 of about 25,904 (258)

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Phenomenological approach to the description of phase transitions in solids

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023
A general model approach to the problem of describing the competition and coexistence of different phases of a condensed state is considered on the basis of Landau's theory of second-order phase transitions.
Smirnov Mikhail, Filippov Vladimir, Ziyautdinov Vladimir, Bogonosov Konstantin   +3 more
doaj   +1 more source

All‐in‐One Analog AI Hardware: On‐Chip Training and Inference with Conductive‐Metal‐Oxide/HfOx ReRAM Devices

Advanced Functional Materials, EarlyView.
An all‐in‐one analog AI accelerator is presented, enabling on‐chip training, weight retention, and long‐term inference acceleration. It leverages a BEOL‐integrated CMO/HfOx ReRAM array with low‐voltage operation (<1.5 V), multi‐bit capability over 32 states, low programming noise (10 nS), and near‐ideal weight transfer.
Donato Francesco Falcone, Victoria Clerico, Wooseok Choi, Tommaso Stecconi, Folkert Horst, Laura Bégon‐Lours, Matteo Galetta, Antonio La Porta, Nikhil Garg, Fabien Alibart, Bert Jan Offrein, Valeria Bragaglia   +11 more
wiley   +1 more source

Diverse electronic and magnetic properties of CrS2 enabling strain-controlled 2D lateral heterostructure spintronic devices

npj Computational Materials, 2021
Lateral heterostructures of two-dimensional (2D) materials, integrating different phases or materials into a single piece of nanosheet, have attracted intensive research interests for electronic devices.
Kaiyun Chen, Junkai Deng, Yuan Yan, Qian Shi, Tieyan Chang, Xiangdong Ding, Jun Sun, Sen Yang, Jefferson Zhe Liu   +8 more
doaj   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Thickness Dependent Structural and Electrical Properties of Magnetron Sputtered Nanostructured CrN Thin Films [PDF]

Materials Research, 2017
In the present work, we have investigated the structural and electrical properties of CrN thin films for a thickness t in the 30-220 nm range, grown on Si (100) substrates.
Harish Sharma Akkera, Nallabala Nanda Kumar Reddy, Musalikunta Chandra Sekhar   +2 more
doaj   +1 more source

Metal–semiconductor surface phase transitions: a photoelectron diffraction study [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2011
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Avila, J., Asensio, M. C.
openaire   +2 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Novel technique to produce porous thermochromic VO2 nanoparticle films using gas aggregation source

Scientific Reports
Vanadium dioxide (VO2) is a phase transition material that undergoes semiconductor-to-metal transition at the temperature of about 68 °C. This extraordinary feature triggered intensive research focused on the controlled synthesis of VO2.
Jan Prokeš, Tereza Košutová, Jaroslav Kousal, Anna Kuzminova, Ondřej Kylián   +4 more
doaj   +1 more source

Tunable inverted gap in monolayer quasi-metallic MoS2 induced by strong charge-lattice coupling

Nature Communications, 2017
MoS2 exhibits multiple electronic properties associated with different crystal structures. Here, the authors observe inverted and fundamental gaps through a designed annealing-based strategy, to induce a semiconductor-to-metal phase transition in ...
Xinmao Yin, Qixing Wang, Liang Cao, Chi Sin Tang, Xin Luo, Yujie Zheng, Lai Mun Wong, Shi Jie Wang, Su Ying Quek, Wenjing Zhang, Andrivo Rusydi, Andrew T. S. Wee   +11 more
doaj   +1 more source