Results 61 to 70 of about 10,456,685 (290)

Unified Phase‐Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films

Advanced Functional Materials, EarlyView.
HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj, Sandeep Sugathan, Jiyoung Kim, Si Joon Kim, Pil‐Ryung Cha   +4 more
wiley   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam, Gerald R. Bejger, Waseem A. Wani, Kristina M. Holsgrove, Andrew N. Titus, Niyorjyoti Sharma, Shihao Wang, Keithen Orson, Megan K. Lenox, Liron Shvilberg, Yong Kyu Choi, Ian A. Brummel, Benjamin L. Aronson, Petra Reinke, Quentin Ramasse, Amit Kumar, Brian J. Rodriguez, Christina M. Rost, Jon F. Ihlefeld   +18 more
wiley   +1 more source

Emerging non-volatile memories

, 2006
The Workshop aims at providing an overview of the state of the art in the field of non volatile memories, touching on the various technologies which have been proposed in the last years.
Luca Perniola, Daniele Ielmini, Rainer Waser, Grazia Tallarida, Damien Deleruyelle, Agostino Pirovano, Claudia Wiemer, Hiroshi Mizuta, Heike Riel, Sidhu Maikap   +9 more
core  

Electrically Induced Phase Transition and Synaptic Functionality in MoTe2/Graphene Memristors

Advanced Functional Materials, EarlyView.
An electrically induced reversible 2H ↔ 1T′ phase transition is demonstrated in a vertical Au/Ti/MoTe2/graphene memristor with a laterally contacted graphene electrode. Resistive switching proceeds through a compositionally invariant amorphous/2H ↔ amorphous/1T′ transformation, in which a self‐formed amorphous MoTe2 interfacial region is proposed to ...
Chien‐Hua Wang, Mu‐Pai Lee, Jhen‐Dong Tsai, Liang‐Ying Hsieh, Jui‐Yuan Chen, Chun‐Wei Huang, Yen‐Fu Lin, Wen‐Wei Wu   +7 more
wiley   +1 more source

NVTM: A Transactional Interface for Next-Generation Non-Volatile Memories [PDF]

, 2009
Advanced non-volatile, solid-state storage technologies such as phase change memory promise enormous gains in performance relative to both conventional disks and flash memory-based storage devices.
Adel, Ameen, Coburn, Joel, Caulfield, Adrian, Swanson, Steven, Grupp, Laura   +4 more
core   +1 more source

Advances and Perspectives in Graphene-Based Quantum Dots Enabled Neuromorphic Devices. [PDF]

Adv Sci (Weinh)
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Zhen Y, Zeng W, Zhao Z, Zhao J, Huang Z, Chen Z, Zhou K, Ding G, Han ST, Zhou Y.   +9 more
europepmc   +2 more sources

Non-volatile optical phase shift in ferroelectric hafnium zirconium oxide

, 2023
A non-volatile optical phase shifter is a critical component for enabling large-scale, energy-efficient programmable photonic integrated circuits (PICs) on a silicon (Si) photonics platform.
Tomohiro Akazawa (16948833), Kouhei Watanabe (6560756), Yuto Miyatake (16948830), Hiroya Sakumoto (16948836), Shinichi Takagi (6410516), Kasidit Toprasertpong (13141774), Naoki Sekine (16948827), Kazuma Taki (16948824), Mitsuru Takenaka (6410513)   +8 more
core   +1 more source

Acetoacetates Derived From Vegetable Oils: A Platform for Tailor‐Made Vinylogous Urethane Foams

Advanced Functional Materials, EarlyView.
A renewable vegetable oil is converted into acetoacetate‐functionalized precursors for the preparation of catalyst‐free vinylogous urethane foams. Room‐temperature foaming with n‐pentane generates lightweight cellular materials, while the choice of amine enables control over foam structure and mechanical properties.
Krzysztof Polaczek, Priscilla de Souza Lima, Olga Gotkiewicz, Ondrej Kopilec, Radka Hobzova, Lívia Kanizsová, Mikelis Kirpluks, Ondrej Sedlacek, Hynek Beneš   +8 more
wiley   +1 more source

Organic non-volatile memories from ferroelectric phase-separated blends [PDF]

, 2008
New non-volatile memories are being investigated to keep up with the organic-electronics road map. Ferroelectric polarization is an attractive physical property as the mechanism for non-volatile switching, because the two polarizations can be used as two
Boer, Asadi, Kamal, Asadi, Kamal,, Boer, Bert de,, Blom, Paul W. M., Bert De, De Leeuw, Dago M., Leeuw, Dago M. de,, De Boer, Bert, Dago M. De Leeuw, Kamal Asadi, Paul W. M. Blom, Blom, Paul W.M.,   +12 more
core   +3 more sources

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source