Results 71 to 80 of about 82,990 (311)

Interpretation of dielectric spectroscopy measurements of ferroelectric nematic liquid crystals

Physical Review Research
The magnitude of the relative permittivity of the ferroelectric nematic phase (N_{F}) has been the subject of lively scientific discussion since the phase was recently discovered.
Vojko Matko, Ewa Gorecka, Damian Pociecha, Joanna Matraszek, Nataša Vaupotič   +4 more
doaj   +1 more source

Numerical simulation of frequency dependence of dielectric permittivity and electrical conductivity of saturated porous media [PDF]

Компьютерные исследования и моделирование, 2016
This article represents numerical simulation technique for determining effective spectral electromagnetic properties (effective electrical conductivity and relative dielectric permittivity) of saturated porous media. Information about these properties is
Alexander Yurievich Demianov, Oleg Yurievich Dinariev, Dmitriy Aleksandrovich Lisitsin   +2 more
doaj   +1 more source

Calculation and analysis of complex band structure in dispersive and dissipative two-dimensional photonic crystals

, 2015
Numerical calculation of modes in dispersive and absorptive systems is performed using the finite element method. The dispersion is tackled in the frame of an extension of Maxwell's equations where auxiliary fields are added to the electromagnetic field.
Brûlé, Yoann, Demésy, Guillaume, Gralak, Boris   +2 more
core   +3 more sources

A study on the transferable skills of the engineering students at Universiti Tun Hussein Onn Malaysia [PDF]

, 2017
The purpose of this study was to identify the students' levels of awareness of the importance of transferable skills and the mastery of the aspects of adaptive, critical thinking, and problem-solving.
Abd Baser, Jamil, Asha’ri, Aifaa Husna, Hasan, Azman, Khairudin, Moh.   +3 more
core   +3 more sources

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

Casimir and van der Waals force between two plates or a sphere (lens) above a plate made of real metals [PDF]

, 2000
The Casimir and van der Waals forces acting between two metallic plates or a sphere (lens) above a plate are calculated accounting for the finite conductivity of the metals.
A. Lambrecht, A. Roy, A. Roy, C. M. Hargreaves, D. Sarid, E. Hult, E. I. Kats, E. M. Lifshitz, E. M. Lifshitz, F. Zhou, G. Barton, G. L. Klimchitskaya, G. L. Klimchitskaya, G. L. Klimchitskaya, H. B. G. Casimir, I. E. Dzyaloshinskii, I. Stokroos, J. Blocki, J. N. Israelachvili, J. R. Kirtley, J. Schwinger, K. Schram, L. D. Landau, M. Bordag, M. Bordag, M. Bordag, N. G. van Kampen, P. B. Johnson, P. H. G. M. van Blokland, P. W. Milonni, R. Wiesendanger, S. K. Lamoreaux, S. K. Lamoreaux, S. K. Lamoreaux, U. Hartmann, U. Hartmann, U. Mohideen, U. Mohideen, V. A. Parsegian, V. B. Bezerra, V. B. Bezerra, V. M. Mostepanenko, V. M. Mostepanenko, V. M. Mostepanenko, Y. Andersson   +44 more
core   +2 more sources

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

Photoconductivity‐Driven Quantum Efficiency Gain in Inorganic Ruddlesden‐Popper Layered Cs2PbBr2I2 Perovskite Photodetector for Visible Light Detection

Advanced Functional Materials, EarlyView.
Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah, Asif Abdullah Khan, Saikiran Khamgaonkar, Majid Haji Bagheri, Danyah Khan, Md Rasidul Islam, Mahmoud Almadoun, Aixi Pan, Alexander Li, Marwa Abd‐Ellah, Vivek Maheshwari, Dayan Ban   +11 more
wiley   +1 more source

Analysis of Sandstone Pore Space Fluid Saturation and Mineralogy Variation via Application of Monostatic K-Band Frequency Modulated Continuous Wave Radar

IEEE Access, 2018
In this paper, we present the preliminary findings from a world-first investigation into monostatic frequency modulated continuous wave (FMCW) radar analysis of porous sandstones and their fluid content.
Jamie Blanche, David Flynn, Helen Lewis, Gary D. Couples, Jim Buckman, Chris Bailey, Timothy Tilford   +6 more
doaj   +1 more source