Results 41 to 50 of about 194,102 (294)

Coexistence of the Critical Slowing Down and Glassy Freezing in Relaxor Ferroelectrics

, 1999
We have developed a dynamical model for the dielectric response in relaxor ferroelectrics which explicitly takes into account the coexistence of the critical slowing down and glassy freezing.
A. Levstik, A. Tagantsev, A.E. Glazounov, B. E. Vugmeister, B.E. Vugmeister, B.E. Vugmeister, B.E. Vugmeister, D. Vieland, E. Courtens, G. Burns, G.A. Samara, H. Rabitz, J. Toulouse, K. Binder, L.E. Cross, M.D. Glinchuk, N. de Mathan, R. Blinc, R. Blinc, R. Sommer, S.B. Vakhrushev, T. Egami, V. Westphal, W. Kleemann   +23 more
core   +1 more source

Magnetoquasistatic resonances of small dielectric objects [PDF]

, 2019
A small dielectric object with positive permittivity may resonate when the free-space wavelength is large in comparison with the object dimensions if the permittivity is sufficiently high.
Forestiere, Carlo, Miano, Giovanni, Pascale, Mariano, Rubinacci, Guglielmo, Tamburrino, Antonello, Tricarico, Roberto, Ventre, Salvatore   +6 more
core   +3 more sources

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

An Adaptation of the Split-Cylinder Resonator Method for Measuring the Microwave Properties of Thin Ferroelectric Films in a “Thin Film—Substrate” Structure

Sensors
The split-cylinder resonator method was adapted to measure the microwave properties (dielectric permittivity and loss tangent) of thin ferroelectric films on a dielectric substrate.
Alexander Gagarin, Diana Tsyganova, Andrey Altynnikov, Andrey Komlev, Roman Platonov   +4 more
doaj   +1 more source

Nontrivial dependence of dielectric stiffness and SHG on dc bias in relaxors and dipole glasses

, 2004
Dielectric permittivity and Second Harmonic Generation (SHG) studies in the field-cooled mode show a linear dependence of dielectric stiffness (inverse dielectric permittivity) on dc bias in PMN-PT crystals and SHG intensity in KTaO$_{3}$:Li at small Li ...
A. S. Emelyanov, Chu F., Colla E. V., Eden S., Emel’yanov S. M., Eugene V. Colla, I. P. Raevski, J-L. Dellis, L. Jastrabik, M. El Marssi, Patashinski A. Z., Raevski I. P., S. A. Prosandeev, S. E. Kapphan, Sakudo T., Vaks V. G.   +15 more
core   +1 more source

Gain assisted nanocomposite multilayers with near zero permittivity modulus at visible frequencies [PDF]

, 2011
We have fabricated a layered nano-composite by alternating metal and gain medium layers, the gain dielectric consisting of a polymer incorporating optically pumped dye molecules.
Ciattoni, Alessandro, Di Falco, Andrea, Rizza, Carlo   +2 more
core   +2 more sources

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

A Novel Rotation-Based Standardless Calibration and Characterization Technique for Free-Space Measurements of Dielectric Material

IEEE Journal of Microwaves
This article presents a novel transmission-only calibration technique for free-space quasi-optical material characterization, based on rotating the sample around its axis to vary the angle of incidence under which the sample is illuminated.
Adrian Diepolder, Mario Mueh, Susanne Brandl, Philipp Hinz, Christian Waldschmidt, Christian Damm   +5 more
doaj   +1 more source

Research of independent DC electric field sensor with wireless power supply circuit

The Journal of Engineering, 2019
The DC electric field strength is an important electromagnetic environment parameter of the high-voltage direct current (HVDC) transmission line. Measurement results of the space electric field are dramatically affected by the size and the potential of ...
Jianzhong When, Zhanqing Yu, Chao Zhang, Ya Mou, Yaosheng Huang, Zhiming Zhen   +5 more
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source