Results 111 to 120 of about 112,114 (290)

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

One-Port Coaxial Line Sample Holder Characterisation Method of Dielectric Spectra

Sensors
A technique for solving the one-port closed coaxial transmission line sample holder scattering equation for complex permittivity inversion for lossy materials is presented.
Iman Farhat, Lourdes Farrugia, Julian Bonello, Rafel Grima, Raffaele Persico, Charles Sammut   +5 more
doaj   +1 more source

Broadband Complex Permittivity Determination for Biomedical Applications [PDF]

, 2010
The complex permittivity determination based on reflection coefficient measurement is suitable for the determination of the dielectric parameters of materials in wide bands. This method was described from the viewpoint of electromagnetic field theory and the coaxial probes were described with the equivalent circuit as an antenna in a lossy medium ...
Zajicek, Radim, Vrba, Jan
openaire   +2 more sources

Asymmetry of the Ferroelectric Phase Transition in BaTiO3

Advanced Materials, EarlyView.
Phase transitions are typically assumed to behave identically in forward and reverse. This work shows that in the ferroelectric material barium titanate this is not true: heating drives an abrupt, first‐order jump, while cooling gives a smooth, continuous change.
Asaf Hershkovitz, Elangovan Hemaprabha, Rajesh Mandal, Pravin Kavle, Jamil Tanus, Maya Barzilay, Ching‐Che Lin, David Spirito, Semën Gorfman, Bo Wang, Ignacio J. Villar‐García, Neus Domingo, Long‐Qing Chen, Lane W. Martin, Yachin Ivry   +14 more
wiley   +1 more source

Microwave dielectric properties of horticultural peat products [PDF]

Mires and Peat, 2007
The microwave dielectric properties of horticultural peat and compost peat were measured with a HP85107C network analyser in conjunction with a HP85070B open-ended coaxial dielectric probe for the frequency range 0.5–20 GHz.
G. Ayalew, N.M. Holden, S.M. Ward
doaj  

Differential Microstrip Sensor for Complex Permittivity Characterization of Organic Fluid Mixtures. [PDF]

Sensors (Basel), 2021
Al-Behadili AA, Mocanu IA, Petrescu TM, Elwi TA.   +3 more
europepmc   +1 more source

Electromagnetic field energy density in artificial microwave materials with negative parameters

, 2004
General relations for the stored reactive field energy density in passive linear artificial microwave materials are established. These relations account for dispersion and absorption effects in these materials, and they are valid also in the regions ...
Askne, Belov, Jackson, Kadomtsev, Kostin, Landau, Loudon, Loudon, Maslovski, Pendry, Ruppin, S.A. Tretyakov, Shelby, Sihvola, Smith, Tretyakov, Tretyakov, Vainstein, Ziolkowski, Ziolkowski   +19 more
core   +1 more source

High Charge Carrier Mobility in Non‐Conjugated 3D Covalent Organic Frameworks

Advanced Materials, EarlyView.
A non‐conjugated 3D COF constructed via boronate ester linkages from tetraphenylene and pyrene‐based monomers is reported, which exhibits a high charge carrier mobility of 14 ± 1 cm2 V−1 s−1. ABSTRACT π‐Conjugation, π–π stacking, and long‐range order play a central role in determining charge transport efficiency in organic materials.
Joaquín Almarza, Karol Strutyński, Shuai Fu, Yifan Chen, Natalia M. Padial, Isabel del Barrio Gómez, Carlos Martí‐Gastaldo, Andrei N. Khlobystov, Mischa Bonn, Hai I. Wang, Manuel Melle‐Franco, Aurelio Mateo‐Alonso   +11 more
wiley   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

The Structure, Morphology, and Complex Permittivity of Epoxy Nanodielectrics with In Situ Synthesized Surface-Functionalized SiO₂. [PDF]

Polymers (Basel), 2021
Adnan MM, Nylund IE, Jaworski A, Hvidsten S, Ese MG, Glaum J, Einarsrud MA.   +6 more
europepmc   +1 more source