Reversible tuning of the heavy-fermion ground state in CeCoIn5

Phys Rev Lett. 2006 Aug 4;97(5):056404. doi: 10.1103/PhysRevLett.97.056404. Epub 2006 Aug 4.


Cadmium doping the heavy-fermion superconductor CeCoIn(5) at the percent level acts as an electronic tuning agent, sensitively shifting the balance between superconductivity and antiferromagnetism and opening new ambient-pressure phase space in the study of heavy-fermion ground states.