de Haas–van Alphen Study of the Fermi Surfaces of Superconducting LiFeP and LiFeAs
C. Putzke, A. I. Coldea, I. Guillamón, D. Vignolles, A. McCollam, D. LeBoeuf, M. D. Watson, I. I. Mazin, S. Kasahara, T. Terashima, T. Shibauchi, Y. Matsuda, A. Carrington
DOI 10.1103/PhysRevLett.108.047002 · Physical Review Letters
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We report a de Haas–van Alphen oscillation study of the 111 iron pnictide superconductors LiFeAs with Tc≈18 K and LiFeP with Tc≈5 K. We find that for both compounds the Fermi surface topology is in good agreement with density functional band-structure calculations and has almost 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| LiFeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18.4 | Pressure not reported | onset |
| LiFeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 17.3 | Pressure not reported | midpoint |
| LiFeP Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.9 | Pressure not reported | onset |
| LiFeP Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.7 | Pressure not reported | midpoint |
| BaFe2(As1-xPx)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
Similar papers
Structural and Magnetic Phase Transitions near Optimal Superconductivity in BaFe2(As1−xPx)2
similarity 0.95Ding Hu et al.
Source status unknown — claims are unverified
A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs
similarity 0.95C. Putzke et al. · 2011 · arXiv:1107.4375
Source status unknown — claims are unverified
Nodal versus Nodeless Behaviors of the Order Parameters of LiFeP and LiFeAs Superconductors from Magnetic Penetration-Depth Measurements
similarity 0.95K. Hashimoto et al.
Source status unknown — claims are unverified
Enhanced Fermi-Surface Nesting in Superconducting BaFe2(As1−xPx)2 Revealed by the de Haas–van Alphen Effect
similarity 0.95J. G. Analytis et al.
Source status unknown — claims are unverified
Investigation of the superconducting gap structure in SrFe2(As0.7P0.3)2 by magnetic penetration depth and flux flow resistivity analysis
similarity 0.95Hideyuki Takahashi et al.
Source status unknown — claims are unverified
Uniaxial c-axis pressure effects on the underdoped superconductor BaFe2(As0.72P0.28)2
similarity 0.94Ding Hu et al.
Source status unknown — claims are unverified