In LaFe1-xCoxAsO, the nematic susceptibility shows a double-peak doping profile and its Curie-Weiss temperature crosses zero near optimal doping, suggesting a nematic quantum critical point.
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Evolution of the nematic susceptibility in LaFe$_{1-x}$Co$_x$AsO
In LaFe1-xCoxAsO, the nematic susceptibility shows a double-peak doping profile and its Curie-Weiss temperature crosses zero near optimal doping, suggesting a nematic quantum critical point.