Results 91 to 100 of about 207,215 (341)

Generalized plasma-like permittivity and thermal Casimir force between real metals

, 2007
The physical reasons why the Drude dielectric function is not compatible with the Lifshitz formula, as opposed to the generalized plasma-like permittivity, are presented. Essentially, the problem is connected with the finite size of metal plates.
Ashcroft N W, B Geyer, Bezerra V B, Bimonte G, Casimir H B G, Chen F, Elizalde E, Erdélyi A, G L Klimchitskaya, Geyer B, Gradshtein I A, Høye J S, Jackson J D, Klimchitskaya G L, Klimchitskaya G L, Lamoreaux S K, Landau L D, Lifshitz E M, Milonni P W, Milton K A, Milton K A, Mostepanenko V M, Mostepanenko V M, Parsegian V A, V M Mostepanenko   +24 more
core   +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

Snowpack relative permittivity and density derived from near‐coincident lidar and ground‐penetrating radar [PDF]

, 2023
Randall Bonnell, Daniel McGrath, A. R. Hedrick, Ernesto Trujillo, Tate Meehan, Keith Williams, Hans‐Peter Marshall, G. A. Sexstone, John W. Fulton, Michael J. Ronayne, Steven R. Fassnacht, Ryan Webb, K. Hale   +12 more
openalex   +1 more source

Dielectric response of a polar fluid trapped in a spherical nanocavity

, 2006
We present extensive Molecular Dynamics simulation results for the structure, static and dynamical response of a droplet of 1000 soft spheres carrying extended dipoles and confined to spherical cavities of radii $R=2.5$, 3, and 4 nm embedded in a ...
Bagchi B., Debye P., Gradshteyn I. S., Hansen J. P., Jackson J. D., Jean-Pierre Hansen, Madden P. A., Ronald Blaak   +7 more
core   +1 more source

Electro‐Active Polymer Actuated Microfiltration Membranes: Design, Performance, and Particle Dynamics

Advanced Functional Materials, EarlyView.
The concept of foulant particle manipulation and detachment from active microfiltration membranes via voltage‐driven vibrations is introduced. Actuator components are initially integrated onto the filtration membranes using an airbrush spray printing technique.
Irem Gurbuz, Hanieh Bazyar, Andres Hunt
wiley   +1 more source

Dielectric Properties of PEEK/PEI Blends as Substrate Material in High-Frequency Circuit Board Applications

Micromachines
Substrate materials for printed circuit boards must meet ever-increasing requirements to keep up with electronics technology development. Especially in the field of high-frequency applications such as radar and cellular broadcasting, low permittivity and
Tim Scherzer, Marius Wolf, Kai Werum, Holger Ruckdäschel, Wolfgang Eberhardt, André Zimmermann   +5 more
doaj   +1 more source

Alkali Ion‐Incorporated HfO2 Dielectrics for Reconfigurable Neuromorphic Computing

Advanced Functional Materials, EarlyView.
This work presents an indium gallium zinc oxide (IGZO) transistor with an alkali cation‐integrated hafnium dioxide (HfO2) dielectric exhibiting synaptic behavior via ion retention. The solution‐based film fabrication strategy overcomes the limitations of atomic layer deposition (ALD) and precursor coating, enabling the control of synaptic retention ...
Seung Yeon Ki, In Cheol Kwak, Seonkwon Kim, Jihyun Kim, Dong Gue Roe, Se‐Jin Kim, Joohoon Kang, Jeong Ho Cho   +7 more
wiley   +1 more source

Does a Morphotropic Phase Boundary Exist in ZrxHf1‐xO2‐Based Thin Films?

Advanced Functional Materials, EarlyView.
This study investigates 6 nm zirconium‐rich hafnium‐zirconium oxide thin–film metal–insulator–metal capacitors using a combination of experimental methods and machine learning–based molecular dynamics simulations to provide insight into the physical mechanisms that enhance the dielectric constant near 0 V and attribute it to the field‐induced ...
Pramoda Vishnumurthy, Richard Ganser, Dong‐Gyu Kim, Intak Jeon, Chang Hwa Jung, Hanjin Lim, Thomas Mikolajick, Susan Trolier‐McKinstry, Alfred Kersch, Uwe Schroeder   +9 more
wiley   +1 more source

Limiting Relative Permittivity “Burn-in” in Polymer Ferroelectrics via Phase Stabilization

, 2022
Naser Pouriamanesh, Florian Le Goupil, Natalie Stingelin, Georges Hadziioannou   +3 more
openalex   +2 more sources

Onsager model for a variable dielectric permittivity near an interface

, 2003
Using a generalisation of an Onsager type approach, we are able to predict a dielectric permittivity profile of an inhomogeneous dipolar fluid in the presence of a dielectric interface.
Ballenegger, Vincent, Finken, Reimar, Hansen, Jean-Pierre   +2 more
core   +1 more source