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Can Two-Dimensional Boron Superconduct?

Nano Letters features our work on its April 2016 issuse

Two-dimensional boron is expected to exhibit various structural polymorphs, all being metallic. Additionally, its small atomic mass suggests strong electron–phonon coupling, which in turn can enable superconducting behavior.  In a work that appears this month in the American Chemical Society journal Nano Letters,  we report first-principles analysis of electronic structure, phonon spectra, and electron–phonon coupling of selected 2D boron polymorphs and show that the most stable structures predicted to feasibly form on a metal substrate should also exhibit intrinsic phonon-mediated superconductivity, with estimated critical temperature in the range of Tc≈ 10–20 K.


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