Magnetic Quantum Criticality inside the Superconducting State Revealed by Penetration Depth Scaling with Local $T_{\mathrm{c}}$

Yusuke Iguchi, Kaede Inoh, Ryosuke Koizumi +1

We demonstrate a magnetic quantum critical point embedded within the superconducting state of Zn-doped CeCoIn${}_5$, revealed by a pronounced peak in the magnetic penetration depth a…