A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs

Abstract

We report a de Haas-van Alphen (dHvA) oscillation study of the 111 iron pnictide superconductors LiFeAs with T_c ~18K and LiFeP with T_c~5K. We find that for both compounds the Fermi surface topology is in good agreement with density functional band-structure calculations and shows quasi-nested electron and hole bands. The effective masses generally show significant enhancement, up to ~3 for LiFeP and ~5 for LiFeAs. However, one hole Fermi surface in LiFeP shows a very small enhancement, as compared with its other sheets. This difference probably results from k-dependent coupling to spin fluctuations and may be the origin of the different nodal and nodeless superconducting gap structures in LiFeP and LiFeAs respectively.

This version includes new higher resolution data. 4 pages with figures

References in corpus (10)

• Gap symmetry and structure of Fe-based superconductors
• LiFeAs: An Intrinsic FeAs-based Superconductor with Tc = 18K
• Superconductivity up to 30 K in the vicinity of quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Structure and superconductivity of LiFeAs
• Fermi surface of superconducting LaFePO determined by quantum oscillations
• Nodeless vs nodal order parameters in LiFeAs and LiFeP superconductors
• Quantum oscillation studies of the Fermi surface of iron-pnictide superconductors
• Determination of the Upper Critical Field of a Single Crystal LiFeAs: The Magnetic Torque Study up to 35 Tesla
• Quantum Oscillation Studies of the Fermi Surface of LaFePO
• Temperature - pressure phase diagram of the superconducting iron pnictide LiFeP

Cited by in corpus (46)

• Emergence of the nematic electronic state in FeSe
• Functional Renormalization Group for multi-orbital Fermi Surface Instabilities
• The key ingredients of the electronic structure of FeSe
• Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
• Anisotropic Energy Gaps of Iron-based Superconductivity from Intra-band Quasiparticle Interference in LiFeAs
• Dichotomy between the hole and electrons behavior in the multiband FeSe probed by ultra high magnetic fields
• Effects of correlation in LiFeAs
• Nodeless vs nodal order parameters in LiFeAs and LiFeP superconductors
• Evolution of the Fermi surface of the nematic superconductors FeSe1-xSx
• Bulk Fermi-surface of the Weyl type-II semi-metallic candidate MoTe2
• Formation of Hubbard-like bands as a fingerprint of strong electron-electron interactions in FeSe
• Suppression of electronic correlations by chemical pressure from FeSe to FeS
• Magnetic interactions in iron superconductors: A review
• Orbital selective Fermi surface shifts and mechanism of high T${}_c$ superconductivity in correlated AFeAs (A=Li,Na)
• Superconducting gap in LiFeAs from three-dimensional spin-fluctuation pairing calculations
• Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
• Electronic nematic states tuned by isoelectronic substitution in bulk FeSe1-xSx
• Effect of non-local correlations on the electronic structure of LiFeAs
• Contrasts in electron correlations and inelastic scattering between LiFeAs and LiFeP revealed by charge transport
• Effect of Li-deficiency impurities on the electron-overdoped LiFeAs superconductor
• Incommensurate magnetic fluctuations and Fermi surface topology in LiFeAs
• 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
• Non-local correlations in Iron Pnictides and Chalcogenides
• Evidence of hot and cold spots on the Fermi surface of LiFeAs
• ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
• Surface and bulk electronic structure of unconventional superconductor Sr_2RuO_4: unusual splitting of the beta-band
• Unusual temperature evolution of superconductivity in LiFeAs
• Ab-initio perspective on structural and electronic properties of iron-based superconductors
• Improper s-wave symmetry for the electronic pairing in iron-based superconductors by first-principles calculation
• Anomalous hysteresis as an evidence for a magnetic field-induced chiral superconducting state in LiFeAs
• Hund's metal crossover and superconductivity in the 111 family of iron-based superconductors
• Upper critical field and quantum oscillations in tetragonal superconducting FeS
• Field-induced nematic-like magnetic transition in an iron pnictide superconductor, Ca${}_{10}$(Pt${}_3$As${}_8$)((Fe${}_{1-x}$Pt${}_x$)${}_2$As${}_2$)${}_5$
• Interband Quasiparticle Scattering in Superconducting LiFeAs Reconciles Photoemission and Tunneling Measurements
• On the Spatial Locality of Electronic Correlations in LiFeAs
• Small and nearly isotropic hole-like Fermi surfaces in LiFeAs detected through de Haas van Alphen-effect
• The Three-Dimensional Electronic Structure of LiFeAs: Strong-coupling Superconductivity and Topology in the Iron Pnictides
• Optical Conductivity Evidence of Clean-Limit Superconductivity in LiFeAs
• Accurate determination of the Fermi surface of tetragonal FeS via quantum oscillation measurements and quasiparticle self-consistent \textit{GW} calculations
• 31P NMR Investigation of the Superconductor LiFeP (Tc = 5 K)
• Anisotropy of the superconducting fluctuations in multiband superconductors: the case of LiFeAs
• Interplay between orbital-quantization effects and the Fulde-Ferrell-Larkin-Ovchinnikov instability in multiple-band layered superconductors
• Absence of nematic instability in LiFeAs
• Slow in-plane magnetoresistance oscillations in multiband quasi-two-dimensional metals
• A Short Review of the $S_4$ Symmetric Microscopic Model for Iron-Based High Temperature Superconductors