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Updated: Jan 20, 2026
Sternberg's Triangular Theory - Seven Forms of Love
Two novel triangular borophenes B3H and B6O: first-principles prediction
Jun-Xiang Zhao1, Qing-Xing Xie1, Yan-Li Li1
1Department of Physics and Institute of Applied Condensed Matter Physics, School of Science, Wuhan University of Technology, Wuhan, Hubei 430070, People's Republic of China.
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By means of density functional theory calculations, we successfully predict two stable 2D triangular borophenes, namely B3H and B6O. Our results indicate that B3H is a Dirac material and its cone point is located at the K point of the Brillouin zone (BZ). B6O is identified as having a node-line ring and Dirac cones together. Its node-line ring formed by the intersection of the extended energy band from the two Dirac cones located on K point. This modified 2D borophene has great thermal and dynamic stability due to the electron transfer from the triangular boron lattice to the O atoms. The electronic structure of B6O nanofilm demonstrates novel properties such as two Dirac cones, more than 1.3 eV linear dispersion bands at some points of the BZ, as well as excellent transport properties for the extremely high mobility brought by the combination of the node-line semimetal and Dirac cones. Our study may motivate potential applications of 2D materials in nanoelectronics.
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