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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We have studied the microscopic magnetic properties, the nature of the 130-Kphase transition, and the ground state in the recently synthesized compoundCe$_2$Rh$_2$Ga by use of $^{69,71}$Ga nuclear quadrupole resonance (NQR). TheNQR spectra clearly show an unusual phase transition at $T_t$ $\sim$ 130 Kyielding a splitting of the high-temperature single NQR line into two clearlyresolved NQR lines, providing evidence for two crystallographicallyinequivalent Ga sites. The NQR frequencies are in good agreement withfully-relativistic calculations of the band structure. Our NQR results indicatethe absence of magnetic or charge order down to 0.3 K. The temperaturedependence of the spin-lattice relaxation rate, 1/$T_1$, shows three distinctregimes, with onset temperatures at $T_t$ and 2 K. The temperature-independent1/$T_1$, observed between $T_t$ and 2 K, crosses over to a Korringa process,1/$T_1$ $\propto$ $T$, below $\sim$ 2 K, which evidences a rare two-ion Kondoscenario: the system goes into a dense Kondo coherent state at 2.0 and 0.8 Kfor the two different Ga sites.

Structural 130-K Phase Transition and Emergence of a Two-Ion Kondo State in HT-Ce$_2$Rh$_2$Ga Explored by $^{69,71}$Ga Nuclear Quadrupole Resonance