Chen Y, Jiang W B, Guo C Y, Ronning F, Bauer E D, Park Tuson, Yuan H Q, Fisk Z, Thompson J D, Lu Xin
Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China.
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
Phys Rev Lett. 2015 Apr 10;114(14):146403. doi: 10.1103/PhysRevLett.114.146403. Epub 2015 Apr 9.
We investigated the electrical resistivity and heat capacity of 1% Cd-doped CeIrIn_{5} under hydrostatic pressure up to 2.7 GPa, near where long-range antiferromagnetic order is suppressed and bulk superconductivity suddenly reemerges. The pressure-induced T_{c} is close to that of pristine CeIrIn_{5} at 2.7 GPa, and no signatures of a quantum critical point under pressure support a local origin of the antiferromagnetic moments in Cd-CeIrIn_{5} at ambient pressure. Similarities between superconductors CeIrIn_{5} and CeCoIn_{5} in response to Cd substitutions suggest a common magnetic mechanism.
