Resistivity and Hall effect of LiFeAs: Evidence for electron-electron scattering

Abstract

LiFeAs is unique among the broad family of FeAs-based superconductors, because it is superconducting with a rather large $T_c\simeq 18$ K under ambient conditions although it is a stoichiometric compound. We studied the electrical transport on a high-quality single crystal. The resistivity shows quadratic temperature dependence at low temperature giving evidence for strong electron-electron scattering and a tendency towards saturation around room temperature. The Hall constant is negative and changes with temperature, what most probably arises from a van Hove singularity close to the Fermi energy in one of the hole-like bands. Using band structure calculations based on angular resolved photoemission spectra we are able to reproduce all the basic features of both the resistivity as well as the Hall effect data.

6 pages, 3 figures included; V2 has been considerably revised and contain a more detailed analysis of the Hall effect data

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Cited by in corpus (22)

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• Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
• Spin-Fluctuation-Induced Non-Fermi-Liquid Behavior with suppressed superconductivity in LiFe${}_{1-x}$Co${}_x$As
• Contrasts in electron correlations and inelastic scattering between LiFeAs and LiFeP revealed by charge transport
• 75As NMR-NQR study in superconducting LiFeAs
• Hall coefficient signals orbital differentiation in the Hund's metal Sr${}_2$RuO${}_4$
• Microwave Surface Impedance Measurements of the Electronic State and Dissipation of Magnetic Vortices in Superconducting Iron-Based LiFeAs Single Crystals
• Highly mobile carriers in orthorhombic phases of iron-based superconductors FeSe${}_{1-x}$S${}_x$
• Unusual temperature evolution of superconductivity in LiFeAs
• Anomalous superconducting state in LiFeAs implied by the ${}^{75}$As Knight shift measurement
• Interband Quasiparticle Scattering in Superconducting LiFeAs Reconciles Photoemission and Tunneling Measurements
• Observation of non-Fermi liquid behavior in hole-doped LiFe${}_{1-x}$V${}_x$As
• Evidence for conventional superconductivity in SrPd2Ge2
• Investigation of LiFeAs by means of "Break-junction" Technique
• Coexistence of Clean- and Dirty-limit Superconductivity in LiFeAs
• Probing the Order Parameter of Superconducting LiFeAs using Pb/LiFeAs and Au/LiFeAs Point-Contact Spectroscopy
• Optical Conductivity Evidence of Clean-Limit Superconductivity in LiFeAs
• When is the Kadowaki-Woods ratio universal?
• Normal and superconducting properties of LiFeAs explained in the framework of four-band Eliashberg Theory
• Resistivity in Co-doped Ba-122: comparison of thin films and single crystals
• Absence of hexagonal to square structural transition in LiFeAs vortex matter
• Effect of inelastic scattering on the nuclear magnetic relaxation rate 1/T1T in iron-based superconductors