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Absence of Long-Wavelength Nematic Fluctuations in LiFeAs

Published

Author(s)

Adrian Merritt, Jose Rodriguez Rivera, Yu Li, Weiyi Wang, Chenglin Zhang, Pengcheng Dai, Dmitry Reznik

Abstract

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.
Citation
Journal of Superconductivity and Novel Magnetism
Volume
29
Issue
12

Keywords

Neutron scattering, pnictide, superconductor, nematic.

Citation

Merritt, A. , Rodriguez Rivera, J. , Li, Y. , Wang, W. , Zhang, C. , Dai, P. and Reznik, D. (2016), 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 June 21, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 30, 2016, Updated October 12, 2021