Superconductivity and charge density wave formation in lithium-intercalated 2H−TaS2
Huanlong Liu, Shangxiong Huangfu, Xiaofu Zhang, Hai Lin, Andreas Schilling
DOI 10.1103/PhysRevB.104.064511 · 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
We systematically investigated the superconducting properties and the interplay between charge density waves (CDWs) and superconductivity (SC) in lithium-intercalated 2H−TaS2. By gradually increasing the lithium content x, the CDW formation temperature is continuously suppressed, and the onset temperature of SC is increased with a maximum transition temperature Tc=3.5K for x=0.096. The bulk nature of SC is confirmed by a superconducting shielding fraction of the order of unity for this composition. The electronic contribution to the specific heat and Hall resistivity data demonstrates that the CDW weakens with lithium intercalation, thereby indirectly increasing the carrier density and boosting SC. While the sign of the charge carriers in undoped 2H−TaS2 changes from electronlike to hole type near the CDW formation temperature ∼75K, the lithium-intercalated LixTaS2 shows predominantly hole-type carriers in the CDW phase even for very low lithium content.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.8 | Pressure not reported | zero_resistance |
| TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.2 | Pressure not reported | midpoint |
| Li0.096TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | Pressure not reported | onset |
| Na0.05TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.5 | Pressure not reported | unknown |
| Na0.1TaS2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.4 | Pressure not reported | unknown |
Similar papers
Superconductivity and charge-density wave formation in lithium intercalated 2H-LixTaS2
similarity 0.99Huanlong Liu et al. · 2021 · arXiv:2105.00755
Source status unknown — claims are unverified
Enhanced anisotropic superconductivity in the topological nodal-line semimetal InxTaS2
similarity 0.94Yupeng Li et al.
Source status unknown — claims are unverified
Tuning the charge density wave and superconductivity in CuxTaS2
similarity 0.94K. E. Wagner et al.
Source status unknown — claims are unverified
Probing enhanced superconductivity in van der Waals polytypes of VxTaS2
similarity 0.93Wojciech R. Pudelko et al.
Source status unknown — claims are unverified
Two-dimensional multigap superconductivity in bulk 2H−TaSeS
similarity 0.92C. Patra et al.
Source status unknown — claims are unverified
Crystal growth, superconductivity, and charge density wave of pristine and Pd-intercalated 2H−TaS2
similarity 0.92Shunli Ni et al.
Source status unknown — claims are unverified