Božidar N. Šoškić, Jonas Bekaert, Cem Sevik, Milorad V. Milošević
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引用次数: 0
摘要
硼吩因其非凡的物理特性,包括结构多态性、强各向异性、金属性和声子介导超导潜力,在元素二维材料中脱颖而出。然而,主要由于金属基底的不利影响及其易氧化性,迄今为止,硼吩中超导电性的实验证实一直遥遥无期。在本研究中,我们对实验合成的氢化 β12 硼吩中的超导性进行了ab initio 分析。我们的研究结果表明,氢化能显著增强 β12 硼吩的稳定性和超导特性。此外,我们还发现,通过各种实验方法实现的拉伸应变和空穴掺杂可显著提高临界温度,最高可达 29 K。这些发现不仅促进了对超导硼吩和其异质结构的进一步基础研究,还将氢化硼吩定位于低维超导电子学的多功能平台。
Enhanced Superconductivity of Hydrogenated β12 Borophene
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 ab initio analysis of superconductivity in the experimentally synthesized hydrogenated β12 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 β12 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.
期刊介绍:
Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including:
- Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale
- Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies
- Modeling and simulation of synthetic, assembly, and interaction processes
- Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance
- Applications of nanoscale materials in living and environmental systems
Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.