Absence of nematic instability in LiFeAs

The relationship among unconventional superconductivity, antiferromagnetism, and nematic order in iron-based superconductors (FeSCs) is still highly debated. In many FeSCs superconductivity proximity of a nematically magnetically ordered state. LiFeAs an exceptional stoichiometric FeSC becoming superconducting below 18 K without undergoing structural or magnetic transition. However, some recent experimental studies suggested the existence finite fluctuations even this paper, we employ elastoresistance as measure pristine compare findings with at low Co V doping levels well that ordering NaFeAs. We find cobalt-doped far away from instability.