LiFeAs: An intrinsic FeAs-based superconductor with Tc=18 K
Joshua H. Tapp, Zhongjia Tang, Bing Lv, Kalyan Sasmal, Bernd Lorenz, Paul C. W. Chu, Arnold M. Guloy
DOI 10.1103/PhysRevB.78.060505 · Physical Review B
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
The synthesis and properties of LiFeAs, a high-Tc Fe-based superconducting stoichiometric compound, are reported. Single crystal x-ray studies reveal that it crystallizes in the tetragonal PbFCl type (P4/nmm) with a=3.7914(7) Å and c=6.364(2) Å. Unlike the known isoelectronic undoped intrinsic FeAs compounds, LiFeAs does not show any spin-density wave behavior but exhibits superconductivity at ambient pressures without chemical doping. It exhibits a respectable transition temperature of Tc=18 K with electronlike carriers and a very high critical field, Hc2(0)>80 T. LiFeAs appears to be the chemical equivalent of the infinite layered compound of the high-Tc cuprates.
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 | Pressure unresolved | onset |
| LiFeAs Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure unresolved | onset |
| KFe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.8 | Pressure not reported | unknown |
| CsFe2As2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.6 | Pressure not reported | unknown |
Similar papers
Crystal, spin, and electronic structure of the superconductor LiFeAs
similarity 0.96Zhi Li et al.
Source status unknown — claims are unverified
Isotropic three-dimensional gap in the iron arsenide superconductor LiFeAs from directional heat transport measurements
similarity 0.95M. A. Tanatar et al.
Source status unknown — claims are unverified
Multiorbital Effects on the Transport and the Superconducting Fluctuations in LiFeAs
similarity 0.95F. Rullier-Albenque et al.
Source status unknown — claims are unverified
Observation of direct evolution from antiferromagnetism to superconductivity in Cu1−xLixFeAs (0≤x≤1.0)
similarity 0.95Kunkun Li et al.
Source status unknown — claims are unverified
Structural, electronic, and magnetic properties of the possible pnictide superconductor BaFeAs2
similarity 0.95Zisheng Gong et al.
Source status unknown — claims are unverified
Effect of pressure on the iron arsenide superconductor LixFeAs (x=0.8,1.0,1.1)
similarity 0.95S. J. Zhang et al.
Source status unknown — claims are unverified