Can I read Stable Rb-B compounds under high pressure on EtoBox?

Stable Rb-B compounds under high pressure by Peiyu Zhang; Yifan Tian; Yilin Yang; Hanyu Liu; Guangtao Liu is a Physics and Astronomy article available to read on EtoBox.

What is Stable Rb-B compounds under high pressure about?

As a frontier issue of physics and material, the structures and related properties of borides have been extensively investigated in fundamental science. The search for pressure-induced stable compounds has become a feasible approach to acquire borides that are inaccessible at atmospheric pressure. Combined with state-of-the-art swarm intelligence structure prediction and first-principles calculations, we systematically explored the Rb-B system and uncovered a series of unprecedented RbB, Rb 2 B 3 , RbB 3 , RbB 6 , RbB 8 , and RbB 10 under high pressure. It is found that the catenation of boron evolves from linear chain to layered sheets, clusterlike units, and further to three-dimensional tunnel structures with increasing boron content. Among them, RbB 6 and RbB 8 are expected phonon-mediated superconductors with T c of ∼12 K and superhard material with a hardness of ∼37 GPa at ambient pressure, respectively. Additionally, RbB 8 is a suitable precursor for obtaining the superconducting o-B 16 boron allotrope by removing Rb due to its better stability than isomorphic SrB 8 . The current results provide insights into the design of unforeseen borides and illustrate intriguing B-B bond

Who reads Stable Rb-B compounds under high pressure?

Author

Peiyu Zhang; Yifan Tian; Yilin Yang; Hanyu Liu; Guangtao Liu

Publisher

American Physical Society (APS)

Published

2023

Language

EN

Field

Physics and Astronomy (Physical Sciences)