Results 71 to 80 of about 58,332 (288)

Thermally Engineered Sodium‐Embedded Alumina with Programmable Synaptic Plasticity for Neuromorphic Transistors

Advanced Functional Materials, EarlyView.
A fully transparent, all‐metal‐oxide neuromorphic transistor using a sodium‐embedded alumina (SEA) electrolyte is demonstrated. By precisely tuning the thermal annealing process, the chemical composition of the SEA layer is controlled, allowing for the deterministic realization of both short‐term and long‐term synaptic plasticity within the same device
Yonghyun Albert Kwon, Jaeyeon Kim, Dong Yeon Won, Saeyoun Park, Youngjae Yoo, Seongchan Kim, Dong‐Hwan Kim, Jeong Ho Cho   +7 more
wiley   +1 more source

Orientational Ordering in Spatially Disordered Dipolar Systems

, 1995
This letter addresses basic questions concerning ferroelectric order in positionally disordered dipolar materials. Three models distinguished by dipole vectors which have one, two or three components are studied by computer simulation.
B. Bergersen, B. E. Vugmeister, B. Groh, B. Mertens, D. Wei, D. Wei, G. Ayton, G. N. Patey, H-J. Xu, H-J. Xu, H. Zhang, J. J. Weis, J. M. Luttinger, J. P. Hansen, K. Binder, M. A. Zaluska-Kotur, M. J. P. Gingras, M. J. P. Gingras, P. G. Kusalik, R. Tao, S. W. de Leeuw, U. T. Höchli, W. Luo   +22 more
core   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Some lead-free ceramics of ferroelectric and photoelectrochemical applications.

Materials and Devices, 2017
The main ferroelectric materials are lead-based which cause serious environmental problem. Then, to develop environment friendly materials, lead-free ceramics derived from BaTiO3 were found to be interesting owing to their attractive ferroelectric ...
Kamel TAÏBI
doaj   +4 more sources

Theory of PbTiO3, BaTiO3, and SrTiO3 Surfaces

, 1999
First-principles total-energy calculations are carried out for (001) surfaces of the cubic perovskite ATiO3 compounds PbTiO3, BaTiO3, and SrTiO3. Both AO-terminated and TiO2-terminated surfaces are considered, and fully-relaxed atomic configurations are ...
Meyer, B., Padilla, J., Vanderbilt, David   +2 more
core   +2 more sources

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Coexistence of coupled magnetic phases in epitaxial TbMnO3 films revealed by ultrafast optical spectroscopy

, 2012
Ultrafast optical pump-probe spectroscopy is used to reveal the coexistence of coupled antiferromagnetic/ferroelectric and ferromagnetic orders in multiferroic TbMnO3 films through their time domain signatures.
A. J. Taylor, Domb C., H. D. Zhou, J. Qi, J.-X. Zhu, L. Yan, Q. X. Jia, R. P. Prasankumar, S. A. Trugman   +8 more
core   +1 more source

Magnetic ferroelectric materials

Bulletin of Materials Science, 1994
In the form of a succinct overview the structure and symmetry requirements of magnetic ferroelectrics are discussed. Boracites are the best-studied examples and have phases being simultaneously ferroelectric, ferromagnetic and ferroelastic. One of the salient features of such materials is the obligatory occurrence of the linear and bilinear ...
openaire   +3 more sources

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Giant Anharmonic Phonon Scattering in PbTe

, 2011
Understanding the microscopic processes affecting the bulk thermal conductivity is crucial to develop more efficient thermoelectric materials. PbTe is currently one of the leading thermoelectric materials, largely thanks to its low thermal conductivity ...
A. F. May, A. Podlesnyak, B. C. Sales, C Wood, D. J. Singh, DT Morelli, ES Bozin, G Chen, G Shirane, G. Ehlers, GA Akhmedova, GJ Snyder, GS Nolas, GS Nolas, GS Nolas, H Burkhard, HA Alperin, HJ Goldsmid, J An, J Hlinka, J. Ma, JM Ziman, JP Heremans, K. Marty, KM Rabe, M Christensen, M-H. Du, M. A. McGuire, M. D. Lumsden, MM Koza, O. Delaire, PM Gehring, RT Bate, UV Waghmare, W Cochran, W Cochran, W Jantsch, W Schweika, WJ Daughton, Y Zhang   +39 more
core   +1 more source