Using first-principles calculations based on density functional perturbation theory, we demonstrate hydrogenation-induced superconductivity in monolayer TiB₂H. Hydrogen adatoms destroy the Dirac state of monolayer TiB₂ and monolayer TiB₂H has a high vibration frequency. Monolayer TiB₂H is a phonon-mediated superconductor. Monolayer TiB₂H has a predicted Tc of 8K, which further increases under external tensile strain. Thus, this study extends our understanding of superconductivity in two-dimensional (2D) materials and its potential applications.

中文翻译：

---

氢化作为二维 TiB2 中超导性的来源

使用基于密度泛函微扰理论的第一性原理计算，我们证明了单层TiB ₂ H 中的氢化诱导的超导性。氢吸附原子破坏了单层TiB 2 的狄拉克状态_并且单层TiB ₂ H 具有高振动频率。单层 TiB ₂ H 是一种声子介导的超导体。单层 TiB ₂ H 具有预测的吨C8 个K，在外部拉伸应变下进一步增加。因此，这项研究扩展了我们对二维 (2D) 材料中的超导性及其潜在应用的理解。