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 investigated the bulk and microscopic properties of the rhombohedralintermediate valence superconductor CeIr$_3$ by employing magnetization, heatcapacity, and muon spin rotation and relaxation ($\mu$SR) measurements. Themagnetic susceptibility indicates bulk superconductivity below $T_\mathrm{C} =3.1$~K. Heat capacity data also reveal a bulk superconducting transition at$T_\mathrm{C} = 3.1$~K with a second weak anomaly near 1.6~K. At$T_{\mathrm{C}}$, the jump in heat capacity $\Delta C$/$\gamma T_{\mathrm{C}}\sim 1.39(1)$, is slightly less than the BCS weak coupling limit of 1.43.Transverse-field $\mu$SR measurements suggest a fully gapped, isotropic,$s$-wave superconductivity with 2$\Delta(0)/k_{\mathrm{B}}T_{\mathrm{C}} =3.76(3)$, very close to 3.56, the BCS gap value for weak-couplingsuperconductors. From the temperature variation of magnetic penetration depth,we have also determined the London penetration depth $\lambda_{\mathrm{L}}(0) =435(2)$~nm, the carriers' effective mass enhancement $m^{*} =1.69(1)m_{\mathrm{e}}$ and the superconducting carrier density $n_{\mathrm{s}}= 2.5(1)\times 10^{26}$ carriers m$^{-3}$. The fact that LaIr$_3$, with no$4f$-electrons, and CeIr$_3$ with $4f^{n}$ electrons where $n \le 1$-electron(Ce ion in a valence fluctuating state), both exhibit the same $s$-wave gapsymmetry indicates that the physics of these two compounds is governed by theIr-$d$ band near the Fermi-level, which is in agreement with previous bandstructure calculations.

Pairing symmetry of an intermediate valence superconductor CeIr3 investigated using muSR measurements