English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Striking features have been found in the nonlinear microwave (8 GHz) surfaceimpedance $Z_s=R_s + jX_s$ of high-quality YBaCuO thin films with comparablelow power characteristics [$R_{res}\sim 35--60 \mu\Omega$ and $\lambda_L(15K)\sim 130--260 nm$]. The surface resistance $R_s$ is found to increase,decrease, or remain independent of the microwave field $H_{rf}$ (up to 60 mT)at different temperatures and for different samples. However, the surfacereactance $X_s$ always follows the same functional form. Mechanisms which maybe responsible for the observed variations in $R_s$ and $X_s$ are brieflydiscussed.Comment: 4 pages, 4 figure

Unusual features in the nonlinear microwave surface impedance of Y-Ba-Cu-O thin films