Publication: Experimental Observables Near a Nematic Quantum Critical Point in the Pnictide and Cuprate Superconductors
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2008
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American Physical Society
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Xu, Cenke, Yang Qi, and Subir Sachdev. 2008. Experimental observables near a nematic quantum critical point in the pnictide and cuprate superconductors. Physical Review B 78(13): 134507.
Abstract
The newly discovered high temperature superconductor SmFeAs((O_{1-x}F_x)) 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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