Multigap Superconductivity in Sesquicarbides La2C3 and Y2C3
S. Kuroiwa, Y. Saura, J. Akimitsu, M. Hiraishi, M. Miyazaki, K. H. Satoh, S. Takeshita, R. Kadono
DOI 10.1103/PhysRevLett.100.097002 · 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
A complex structure of the superconducting order parameter in Ln2C3 (Ln=La,Y) is demonstrated by muon spin relaxation measurements in their mixed state. The muon depolarization rate [σv(T)] exhibits a characteristic temperature dependence that can be perfectly described by a phenomenological double-gap model for nodeless superconductivity. While the magnitude of two gaps is similar between La2C3 and Y2C3, a significant difference in the interband coupling between those two cases is clearly observed in the behavior of σv(T).
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2C3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11.2 | Pressure unresolved | onset |
| Y2C3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15.2 | Pressure unresolved | onset |
| La2C3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11 | Pressure unresolved | unknown |
| Y2C3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 15 | Pressure unresolved | unknown |
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 39 | Pressure not reported | unknown |
Similar papers
Lattice instability and enhancement of superconductivity in YB6
similarity 0.95N. Sluchanko et al.
Source status unknown — claims are unverified
Electronic and structural properties of superconducting MgB2, CaSi2, and related compounds
similarity 0.95G. Satta et al.
Source status unknown — claims are unverified
Strong-coupling superconductivity in LiB2C2 trilayer films
similarity 0.95Miao Gao et al.
Source status unknown — claims are unverified
High-Tc and three-gap two-dimensional superconductors with electronic and phononic topology: KB2C2
similarity 0.95Hao-Dong Liu et al.
Source status unknown — claims are unverified
First-principles prediction of superconductivity in MgB3C3
similarity 0.95Truong-Tho Pham & Duc-Long Nguyen
Source status unknown — claims are unverified
Two-band/two-gap superconductivity in carbon-substituted MgB2 evidenced by point-contact spectroscopy
similarity 0.95P. Samuely et al.
Source status unknown — claims are unverified