Cubine, a superconducting 2-dimensional copper-bis
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Posted On: 04/12/2017 11:42:17 AM
Cubine, a superconducting 2-dimensional copper-bismuth nano sheet
Maximilian Amsler, Zhenpeng Yao, Chris Wolverton
(Submitted on 10 Apr 2017)
We report on the discovery of a 2-dimensional copper-bismuth nano sheet from \textit{ab initio} calculations, which we call cubine. According to our predictions, single layers of cubine can be isolated from the recently reported high-pressure CuBi bulk material (metastable at ambient conditions) at an energetic cost of merely
≈20
~meV/\AA
2
, comparable to separating single layers of graphene from graphite. Our calculations suggest that cubine has remarkable electronic and electrochemical properties: It is a superconductor with a moderate electron-phonon coupling
λ=0.5
, leading to a
T
c
of
≈1
~K, and can be readily intercalated with lithium with a high diffusibility, rendering it a promising candidate material as an anode in lithium-ion batteries.
Maximilian Amsler, Zhenpeng Yao, Chris Wolverton
(Submitted on 10 Apr 2017)
We report on the discovery of a 2-dimensional copper-bismuth nano sheet from \textit{ab initio} calculations, which we call cubine. According to our predictions, single layers of cubine can be isolated from the recently reported high-pressure CuBi bulk material (metastable at ambient conditions) at an energetic cost of merely
≈20
~meV/\AA
2
, comparable to separating single layers of graphene from graphite. Our calculations suggest that cubine has remarkable electronic and electrochemical properties: It is a superconductor with a moderate electron-phonon coupling
λ=0.5
, leading to a
T
c
of
≈1
~K, and can be readily intercalated with lithium with a high diffusibility, rendering it a promising candidate material as an anode in lithium-ion batteries.
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