Composition and field-tuned magnetism and superconductivity in Nd1-x Cex CoIn5

Rongwei Hu; Y. Lee; J. Hudis; V. F. Mitrovic; C. Petrovic

doi:10.1103/PhysRevB.77.165129

Composition and field-tuned magnetism and superconductivity in Nd1-x Cex CoIn5

Rongwei Hu, Y. Lee, J. Hudis, V. F. Mitrovic, C. Petrovic

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The Nd1-x Cex CoIn5 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≤x≤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.

Original language	English
Article number	165129
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	77
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevB.77.165129
Publication status	Published - 2008 Apr 24

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.77.165129

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AU - Petrovic, C.

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AB - The Nd1-x Cex CoIn5 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≤x≤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.

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Composition and field-tuned magnetism and superconductivity in Nd1-x Cex CoIn5

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