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Iron-Based superconductors

Enigmatic nematic

Iron pnictide superconductors often feature nematic, symmetry-breaking electronic states. These phenomena are now found to persist into the tetragonal phase of NaFeAs — a new piece of information that may help settle the fundamental origin of nematic electronic states.

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Figure 1: Schematic temperature versus chemical-doping phase diagram of an iron-based superconductor displaying a crystal structure transition from tetragonal to orthorhombic.


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Correspondence to J. C. Davis or P. J. Hirschfeld.

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Davis, J., Hirschfeld, P. Enigmatic nematic. Nature Phys 10, 184–185 (2014).

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