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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Coplanar microwave resonators made of 330 nm-thick superconducting YBCO havebeen realized and characterized in a wide temperature ($T$, 2-100 K) andmagnetic field ($B$, 0-7 T) range. The quality factor $Q_L$ exceeds 10$^4$below 55 K and it slightly decreases for increasing fields, remaining 90$\%$ of$Q_L(B=0)$ for $B=7$ T and $T=2$ K. These features allow the coherent couplingof resonant photons with a spin ensemble at finite temperature and magneticfield. To demonstrate this, collective strong coupling was achieved by usingDPPH organic radical placed at the magnetic antinode of the fundamental mode:the in-plane magnetic field is used to tune the spin frequency gap splittingacross the single-mode cavity resonance at 7.75 GHz, where clear anticrossingsare observed with a splitting as large as $\sim 82$ MHz at $T=2$ K. Thespin-cavity collective coupling rate is shown to scale as the square root ofthe number of active spins in the ensemble.

YBCO microwave resonators for strong collective coupling with spin ensembles