Phonon-mediated superconductivity near the lattice instability in hole-doped hydrogenated monolayer hexagonal boron nitride
Takat B. Rawal, Ling-Hua Chang, Hao-Dong Liu, Hong-Yan Lu, C. S. Ting
DOI 10.1103/PhysRevMaterials.6.054003 · Physical Review Materials
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
Employing the density functional theory with local density approximation, we show that the fully hydrogenated monolayer-hexagonal boron nitride (H2BN) has a direct band gap of 2.96 eV in the blue-light region, while the pristine h-BN has a wider indirect band gap of 4.78 eV. The hole-doped H2BN is stable at low carrier density (n) but becomes dynamically unstable at higher n. We predict that it is a phonon-mediated superconductor with a transition temperature (Tc) which can reach ∼31 K at n of 1.5×1014 holes cm−2 near the lattice instability. The Tc could be enhanced up to ∼82 K by applying a biaxial tensile strain at 6% along with doping at n of 3.4×1014 holes cm−2 close to a new lattice instability.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| H2BN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 31 | Pressure not reported | unknown |
| H2BN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 82 | Pressure not reported | unknown |
Similar papers
First-principles calculations of monolayer hexagonal boron nitride: Possibility of superconductivity
similarity 0.94Xiao-Tian Jin et al.
Source status unknown — claims are unverified
Phonon-Mediated Superconductivity near the Lattice Instability in Hole-doped Hydrogenated Monolayer Hexagonal Boron Nitride
similarity 0.93Takat B. Rawal et al. · 2021 · arXiv:2110.00105
Source status unknown — claims are unverified
Prediction of hydrogen-induced high-temperature superconductivity in monolayer ScB2H2
similarity 0.91Jialiang Cai et al.
Source status unknown — claims are unverified
Hydrogen-Induced High-Temperature Superconductivity in Two-Dimensional Materials: The Example of Hydrogenated Monolayer MgB2
similarity 0.90J. Bekaert et al.
Source status unknown — claims are unverified
Phonon-mediated superconductivity in doped monolayer materials
similarity 0.90Even Thingstad et al. · 2019 · arXiv:1912.05570
Source status unknown — claims are unverified
Theoretical prediction of superconductivity in monolayer B3N
similarity 0.89Hao-Dong Liu et al.
Source status unknown — claims are unverified