Reemergent superconductivity and avoided quantum criticality in Cd-doped CeIrIn(5) under pressure.
作者信息
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
机构信息
Center for Correlated Matter and Department of Physics, Zhejiang University, Hangzhou 310058, China.
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
出版信息
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.
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