Superconductivity: Exotic Commonalities in Phase and Mode

Abstract

Recent muon and neutron experiments on the new FeAs-based superconductors revealed phase diagrams characterized by first-order evolution from antiferromagnetic to superconducting states, and an inelastic magnetic resonance mode whose energy scales as $\sim 4k_B{T}_c$. These features exhibit striking commonalities with cuprate, backyball, organic, and heavy-fermion superconductors as well as superfluid ${}^4$He.

4 pages, 2 figures, original version of News and Views for Nature Materials submitted on Feb. 8, 2009; revised version will appear as Nature Materials 8 (April, 2009) 253-255

References in corpus (6)

• Structural and magnetic phase diagram of CeFeAsO1-xFx and its relationship to high-temperature superconductivity
• The electronic phase diagram of the LaO1-xFxFeAs superconductor
• Coexistence of the spin-density-wave and superconductivity in the (Ba,K)Fe2As2
• Coexistence of static magnetism and superconductivity in SmFeAsO1-xFx as revealed by muon spin rotation
• Spin resonance in the d-wave superconductor CeCoIn5
• The resonant magnetic mode: a common feature of high-$T_C$ superconductors

Cited by in corpus (2)

• Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
• Magnetic-superconducting phase boundary of SmFeAsO${}_{1-x}$F${}_x$ studied via muon spin rotation: Unified behavior in a pnictide family