2008/04/01 by Rongwei Hu, Y. Lee, Yongjae Lee +5 · 1 citation
Materials Science · Physics and Astronomy · #Condensed matter physics #Iron-based superconductors research #Magnetic and transport properties of perovskites and related materials #Magnetic moment #Magnetism #Order (exchange) #Phase (matter) #Phase diagram #Physics #Quantum mechanics #Rare-earth and actinide compounds #Superconductivity #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.77.165129
7 pages, 7 figures. Physical Review B in press
arxiv created 2008/04/01 · openalex publication_date 2008/04/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The Nd_1\ensuremath-xCexCoIn5 alloys evolve from local moment magnetism (x=0) to heavy fermion superconductivity (x=1). Magnetic order is observed over a broad range of x. For a substantial range of x (0.83\ensuremath≤x\ensuremath≤0.95) in the temperature-composition phase diagram we find that superconductivity may coexist with spin-density wave magnetic order at the Fermi surface. We show that a delicate balance betwen superconducting and magnetic instabilities can be reversibly tuned by both the Ce/Nd ratio and magnetic field, offering a unique model electronic system.