Physical properties of the noncentrosymmetric superconductor Ru7B3
Lei Fang, Huan Yang, Xiyu Zhu, Gang Mu, Zhao-Sheng Wang, Lei Shan, Cong Ren, Hai-Hu Wen
DOI 10.1103/PhysRevB.79.144509 · 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
Physical properties have been comprehensively investigated on the noncentrosymmetric superconductor Ru7B3 with TC=3.3 K. It is found that the superfluid comprises a major component with a full-gap feature instead of a nodal-like pairing symmetry as revealed by specific-heat and lower-critical-field measurements. Combining with resistivity (ρxx and ρxy) and electronic band-structure calculation, the superconducting and normal-state physical parameters were determined by a self-consistent analysis. It is found that Ru7B3 may belong to a single band superconductor with energy gap of 0.5 meV and could be categorized into type-II superconductor with weak electron-phonon coupling. An unusual “kink” feature is clearly observed in the field induced broadening of the resistivity curves. Possible reasons are given for this unusual two-step transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ru7B3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.3 | Pressure not reported | onset |
| Ru7B3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.3 | Pressure not reported | zero_resistance |
| Ru7B3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.58 | Pressure not reported | unknown |
| CePt3Si Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Li2Pt3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Physical properties of noncentrosymmetric superconductor RuB
similarity 0.96Lei Fang et al. · 2008 · arXiv:0811.2252
Source status unknown — claims are unverified
Effect of pressure on structural and electronic properties of the noncentrosymmetric superconductor Rh2Mo3N
similarity 0.96Yonghui Zhou et al.
Source status unknown — claims are unverified
Surface and vortex structures in noncentrosymmetric superconductors under applied magnetic fields
similarity 0.95Masatosi Oka et al.
Source status unknown — claims are unverified
Fermi surface and superconductivity in noncentrosymmetric CeRhSi3
similarity 0.95T. Terashima et al.
Source status unknown — claims are unverified
Magnetoelectric effects in heavy-fermion superconductors without inversion symmetry
similarity 0.95Satoshi Fujimoto
Source status unknown — claims are unverified
Comparative study of the centrosymmetric and noncentrosymmetric superconducting phases of Re3W using muon spin spectroscopy and heat capacity measurements
similarity 0.95P. K. Biswas et al.
Source status unknown — claims are unverified