Superconductivity in the Metal Rich Li-Pd-B Ternary Boride
K. Togano, P. Badica, Y. Nakamori, S. Orimo, H. Takeya, K. Hirata
DOI 10.1103/PhysRevLett.93.247004 · 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
Superconductivity at about 8 K was observed in the metal-rich Li-Pd-B ternary system. Structural, microstructural, electrical, and magnetic investigations for various compositions proved that the Li2Pd3B compound, which has an antiperovskite cubic structure composed of distorted Pd6B octahedrons, is responsible for the superconductivity. This is the first observation of superconductivity in metal-rich ternary borides containing alkaline metal and Pd as a late transition metal. The compound prepared by arc melting has a high density and is relatively stable in the air. The upper critical fields Hc2(0) estimated by linear extrapolation and the Werthamer-Helfand-Hohenberg theory are 6.2 and 4.8 T, respectively.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Li2Pd3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure not reported | onset |
| Li2Pd3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8.2 | Pressure not reported | onset |
| Li2Pd3B Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 8 | Pressure not reported | unknown |
| TaB Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4 | Pressure not reported | 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
Pressure-induced superconductivity and electride states in lithium-gallium compounds
similarity 0.96Ting Zhong et al.
Source status unknown — claims are unverified
Crystal symmetry, electron-phonon coupling, and superconducting tendencies in Li2Pd3B and Li2Pt3B
similarity 0.96K.-W. Lee & W. E. Pickett
Source status unknown — claims are unverified
High magnetic field superconductivity in a two-band superconductor
similarity 0.96Tancredi Salamone et al.
Source status unknown — claims are unverified
Abrupt enhancement of noncentrosymmetry and appearance of a spin-triplet superconducting state in Li2(Pd1−xPtx)3B beyond x=0.8
similarity 0.95S. Harada et al.
Source status unknown — claims are unverified
Enhancing superconductivity with resonant antishielding and topological plasmon-polarons
similarity 0.95Krzysztof Kempa et al.
Source status unknown — claims are unverified
Inhomogeneous superconductivity in LuxZr1−xB12 dodecaborides with dynamic charge stripes
similarity 0.95A. Azarevich et al.
Source status unknown — claims are unverified