Recent advances in microwave ferrite device technology have seen the introduction of superconductivity that virtually eliminates insertion losses due to electrical conduction in microstrip circuits. The conventional ferrimagnetic spinel and garnet compositions, however, are not generally optimized for temperatures in the vicinity of 77 K and may require chemical redesign in order to realize the...

Related DatabasesWeb of Science You must be logged in with an active subscription to view this.Article DataHistorySubmitted: 6 August 2019Accepted: 06 December 2020Published online: 22 February 2021Keywordsbiological diffusion models, hysteresis, evolution control systems, state-dependent constraints, relaxationAMS Subject Headings49J45, 49J53, 93C20, 93C73Publication DataISSN (print): 0363-012...

Two new versions of the density functional theory (DFT), which correspond to the canonical ensemble and the Gibbs ensemble respectively, are applied to study multiple equilibrium states and associated hysteresis on examples of capillary condensation of argon in nanopores of MCM-41 mesoporous molecular sieves and Kr adsorption on carbon. The canonical ensemble DFT (CEDFT) allows us to trace not ...

A collective coordinate approach is applied toanalyze the effect of an ifsignal on the radiation emitted from a long Josephson junction. This system shows a variety of interesting nonlinear phenomena including chaos and hysteresis. Consideringthe excited localized nonlinear oscillation as an effective breather mode, we derive a nonlinear equation for the collective variable of the breather and ...

We propose a microscopic model without energy barriers in order to explain some generic features observed in structural glasses. The statics can be exactly solved while the dynamics has been clarified using Monte Carlo calculations. Although the model has no thermodynamic transition it captures some of the essential features of real glasses, i.e., extremely slow relaxation, time dependent hyste...

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The study of the frequency dependence components complex permittivity thin (100 nm) nanocrystal silver iodide (AgI) films revealed presence two different types relaxation processes, sharply differing in their times: tau1<<tau2. It is established that small time tau1 formation a stable configuration internal electric field when external high-frequency sinusoidal shielded by system free con...

Everett's theorem-6 of the domain theory was examined by conducting adsorption in situ with small angle x-ray scattering (SAXS) supplemented by the contrast matching technique. The study focuses on the spectrum differences of a point to which the system arrives from different scanning paths. It is noted that according to this theorem at a common point the system has similar macroscopic properti...