Absence of Long-Wavelength Nematic Fluctuations in LiFeAs
Adrian Merritt, Jose Rodriguez Rivera, Yu Li, Weiyi Wang, Chenglin Zhang, Pengcheng Dai, Dmitry Reznik
We investigated long-wavelength nematic fluctuations in an Fe-based superconductor LiFeAs near q=(0.05,0,0) by measuring temperature-dependent renormalization of acoustic phonons through inelastic neutron scattering. We found that the phonons have conventional behavior, as would be expected in the absence of electronic nematic fluctuations. This observation implies that either electron-phonon coupling is too weak to see an effect or that nematic fluctuations are not present.
, Rodriguez Rivera, J.
, Li, Y.
, Wang, W.
, Zhang, C.
, Dai, P.
and Reznik, D.
Absence of Long-Wavelength Nematic Fluctuations in LiFeAs, Journal of Superconductivity and Novel Magnetism, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=921548
(Accessed December 8, 2023)