Superconductivity in the nodal-line compound La3Pt3Bi4
Liang Li, Guo-Xiang Zhi, Qinqing Zhu, Chunxiang Wu, Zhihua Yang, Jianhua Du, Jinhu Yang, Bin Chen, Hangdong Wang, Chao Cao, Minghu Fang
DOI 10.1103/PhysRevResearch.4.L032004 · Physical Review Research
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Abstract
Owing to the specific topological states in nodal-line semimetals, novel topological superconductivity is expected to emerge in these systems. In this Letter, we demonstrate that La3Pt3Bi4 is a topologically nontrivial nodal-ring semimetal protected by the gliding-mirror symmetry using first-principles calculations. Meanwhile, we discover bulk superconductivity with a transition temperature of ∼1.1 K and an upper critical field of ∼0.41 T by means of resistivity, susceptibility, and specific heat measurements. These findings demonstrate that La3Pt3Bi4 provides a material platform for studying novel superconductivity in the nodal-ring system.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La3Pt3Bi4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.1 | Pressure not reported | onset |
| La3Pt3Bi4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.8 | Pressure not reported | midpoint |
| La3Pt3Bi4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.1 | Pressure not reported | onset |
| LaPtBi Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.9 | Pressure not reported | unknown |
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