Borophene stands out among elemental two-dimensional materials due to its extraordinary physical properties, including structural polymorphism, strong anisotropy, metallicity, and the potential for phonon-mediated superconductivity. However, confirming superconductivity in borophene experimentally has been evasive to date, mainly due to the detrimental effects of metallic substrates and its susceptibility to oxidation. In this study, we present an analysis of superconductivity in the experimentally synthesized hydrogenated β borophene, which has been proven to be less prone to oxidation. Our findings demonstrate that hydrogenation significantly enhances both the stability and superconducting properties of β borophene. Furthermore, we reveal that tensile strain and hole doping, achievable through various experimental methods, significantly enhance the critical temperature, reaching up to 29 K. These findings not only promote further fundamental research on superconducting borophene and its heterostructures, but also position hydrogenated borophene as a versatile platform for low-dimensional superconducting electronics.
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Article Synopsis
- The study uses density functional theory simulations to analyze the electronic and magnetic properties of hydrogenated borophenes, particularly when doped with 3d transition metals.
- It finds that hydrogenating 2-borophene creates a Dirac cone, enhancing its stability and suggesting its potential use as a Dirac material.
- The research highlights that Cr-doped hydrogenated borophene exhibits the highest magnetic moment, opening avenues for applications in electronics and spintronics, while providing insights for future experimental work on tunable 2D materials.
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