Nodeless Superconductivity in the Noncentrosymmetric Superconductor $Mg_{10}Ir_{19}B_{16}$
| dc.creator | Mu, Gang | |
| dc.creator | Wang, Yue | |
| dc.creator | Shan, Lei | |
| dc.creator | Wen, Hai-Hu | |
| dc.date | 2007-06-06 | |
| dc.date | 2007-06-09 | |
| dc.date.accessioned | 2026-07-07T08:41:11Z | |
| dc.date.available | 2026-07-07T08:41:11Z | |
| dc.description | We measured the resistivity, diamagnetization and low temperature specific heat of the newly discovered noncentrosymmetric superconductor $Mg_{10}Ir_{19}B_{16}$. It is found that the superconducting gap has an s-wave symmetry with a value of about $Δ_0 \approx$ 0.6 meV, and the ratio $Δ_0/k_BT_c\approx1.86$ indicates a weak coupling for the superconductivity. The correlations among the normal state Sommerfeld constant $γ_n$, the slope $-dμ_0H_{c2}(T)/dT$ near Tc and the condensation energy Ec are all consistent with the weak coupling picture. The separated phonon contribution from the specific heat shows that the conduction electrons of the $Ir$ atoms interact most strongly with the vibrations of themselves, instead of with that of the light element boron. | |
| dc.description | 5 pages, 5 figures; added references, corrected typos | |
| dc.identifier | https://arxiv.org/abs/0706.0778 | |
| dc.identifier | http://arxiv.org/abs/0706.0778 | |
| dc.identifier | published in Phys. Rev. B 76, 064527 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.76.064527 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/141604 | |
| dc.subject | Superconductivity | |
| dc.title | Nodeless Superconductivity in the Noncentrosymmetric Superconductor $Mg_{10}Ir_{19}B_{16}$ | |
| dc.type | text |