Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors

Details Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors

2008-07-10

arxiv.org/abs/0807.1542v2

Phys. Rev. B 78, 134507 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 7 figures

Scientific paper

10.1103/PhysRevB.78.134507

The newly discovered high temperature superconductor SmFeAs(O1-xFx) shows a clear nematic transition where the square lattice of Fe ions has a rectangular distortion. Similar nematic ordering has also been observed in the cuprate superconductors. We provide a detailed theory of experimental observables near such a nematic transition: we calculate the scaling of specific heat, local density of states (LDOS) and NMR relaxation rate 1/T_1T.

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