Successive superconducting transitions and Anderson localization effect in Ta2S2C
Jürgen Walter, Itsuko S. Suzuki, Masatsugu Suzuki
DOI 10.1103/PhysRevB.70.064519 · 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
A complex carbide Ta2S2C consists of van der Waals (vdw)-bonded layers with a stacking sequence along the c axis: ⋯C−Ta−S−vdw−S−Ta−C−⋯. The magnetic properties of this compound have been studied from dc and ac magnetic susceptibility. Ta2S2C undergoes successive superconducting transitions of a hierachical nature at Tcl=3.61±0.01K [Hc1(l)(0)=28±2Oe and Hc2(l)(0)=7.7±0.2kOe] and Tcu=8.9±0.1K [Hc2(u)(0)=14.0±0.5kOe]. The intermediate phase between Tcu and Tcl is an intragrain superconductive state occurring in the Ta−C layers in Ta2S2C. The low temperature phase below Tcl is an intergrain superconductive state. The magnetic susceptibility at H well above 10kOe is described by a sum of a diamagnetic susceptibility and a Curie-type behavior. The latter is due to the localized magnetic moments of conduction electrons associated with the Anderson localization effect, occurring in the 1T−TaS2 type structure in Ta2S2C.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ta2S2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.61 | Pressure not reported | onset |
| Ta2S2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8.9 | Pressure not reported | onset |
| Nb2S2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.6 | Pressure not reported | unknown |
| TaC Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9.7 | Pressure not reported | unknown |
Similar papers
Successive superconducting transitions in Ta2S2C studied by electrical resistivity and nonlinear ac magnetic susceptibility
similarity 0.94Masatsugu Suzuki et al.
Source status unknown — claims are unverified
Local density of states in the vortex lattice in a type-II superconductor
similarity 0.91Masanori Ichioka et al.
Source status unknown — claims are unverified
Origin of Superconductivity and Latent Charge Density Wave in NbS2
similarity 0.90Christoph Heil et al.
Source status unknown — claims are unverified
Study on successive superconducting transitions in TaSC from electrical resistivity and nonlinear AC magnetic susceptibility
similarity 0.90Masatsugu Suzuki et al. · 2006 · arXiv:cond-mat/0601078
Source status unknown — claims are unverified
Multigap superconductivity in chiral noncentrosymmetric TaRh2B2
similarity 0.90D. A. Mayoh et al.
Source status unknown — claims are unverified
Dichotomy of charge density wave and superconductivity in monolayer NbS2 and NbSe2: A view from fermiology
similarity 0.90Tappei Kawakami et al.
Source status unknown — claims are unverified