Contrasts in electron correlations and inelastic scattering between LiFeAs and LiFeP revealed by charge transport

Abstract

By using high-quality single crystals, we quantitatively compare the transport properties between LiFeAs and LiFeP superconductors with compensated electron and hole carriers. The low-temperature resistivity follows the Fermi-liquid $A{T}^2$ dependence with a factor of $\sim 3$ difference in the coefficient $A$. This highlights weaker electron correlations in LiFeP, which is consistent with its $\sim 70$ times lower upper critical field than that of LiFeAs. Our analysis of the magneto-transport data indicates that in LiFeP the electron carriers with lighter masses exhibit stronger temperature dependence of inelastic scattering rate than the holes, which is the opposite to the LiFeAs case. This stark difference in the band-dependent inelastic scattering may be relevant to the recently reported contrasting superconducting gap structures in these two superconductors.

4 pages, 3 figures, 1 table

References in corpus (14)

• The superconductivity at 18 K in LiFeAs system
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Structure and superconductivity of LiFeAs
• Spin fluctuations and superconductivity in a 3D tight-binding model for BaFe2As2
• Momentum dependence and nodes of the superconducting gap in iron-pnictides
• Spin fluctuations in LiFeAs observed by neutron scattering
• Synthesis, anisotropy, and superconducting properties of LiFeAs single crystal
• The upper critical field and its anisotropy in LiFeAs
• Microwave Surface Impedance Measurements of LiFeAs Single Crystals
• Single crystal growth and superconducting properties of LiFeAs
• Temperature - pressure phase diagram of the superconducting iron pnictide LiFeP
• Anisotropy of the coherence length from critical currents in the stoichiometric superconductor LiFeAs
• Anisotropic Superconducting Properties of Optimally Doped BaFe${}_2$(As${}_{0.65}$P${}_{0.35}$)${}_2$ under Pressure
• Moessbauer and magnetic measurements of superconducting LiFeP

Cited by in corpus (21)

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• Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
• Surface-induced Magnetism Fluctuations in Single Crystal of NiBi3 Superconductor
• Evidence for two energy gaps and Fermi liquid behavior in SrPt${}_2$As${}_2$ superconductor
• Fermi surface topology of LaFePO and LiFeP
• Microwave Surface Impedance Measurements of the Electronic State and Dissipation of Magnetic Vortices in Superconducting Iron-Based LiFeAs Single Crystals
• Vertical loop nodes in iron-based superconductors
• Transport anomalies due to anisotropic interband scattering
• Hund's metal crossover and superconductivity in the 111 family of iron-based superconductors
• Large low-temperature magnetoresistance in SrFe2As2 single crystals
• Unconventional localization of electrons inside of a nematic electronic phase
• Correlation between non-Fermi-liquid behavior and superconductivity in (Ca, La)(Fe,Co)As2 iron arsenides: A high-pressure study
• Optical Conductivity Evidence of Clean-Limit Superconductivity in LiFeAs
• A phenomenological multiband Eliashberg model for LiFeAs
• Nodal versus nodeless superconductivity in iso-electronic LiFeP and LiFeAs
• Normal and superconducting properties of LiFeAs explained in the framework of four-band Eliashberg Theory
• 31P NMR Investigation of the Superconductor LiFeP (Tc = 5 K)
• Absence of strong magnetic fluctuations in the iron phosphide superconductors LaFePO and Sr2ScO3FeP
• Anisotropy of the superconducting fluctuations in multiband superconductors: the case of LiFeAs
• High-pressure self-flux growth and characterization of Li-deficient Li0.95FeAs single crystals