m*****e
发帖数: 1506 | 1 Cao Yuan新作
https://www.nature.com/articles/s41563-022-01287-1
The discovery of correlated states and superconductivity in magic-angle
twisted bilayer graphene (MATBG) established a new platform to explore
interaction-driven and topological phenomena. However, despite multitudes of
correlated phases observed in moiré systems, robust superconductivity
appears the least common, found only in MATBG and more recently in magic-
angle twisted trilayer graphene. Here we report the experimental realization
of superconducting magic-angle twisted four-layer and five-layer graphene,
hence establishing alternating twist magic-angle multilayer graphene as a
robust family of moiré superconductors. This finding suggests that the flat
bands shared by the members play a central role in the superconductivity.
Our measurements in parallel magnetic fields, in particular the
investigation of Pauli limit violation and spontaneous rotational symmetry
breaking, reveal a clear distinction between the N = 2 and N&#
8201;> 2-layer structures, consistent with the difference between
their orbital responses to magnetic fields. Our results expand the emergent
family of moiré superconductors, providing new insight with potential
implications for design of new superconducting materials platforms.
好奇这五层石墨烯是怎么堆起来的？角度怎么控制的？
搞凝聚态物理的也真狠，几层碳原子堆起来竟然搞出超导
很有前途啊 | k*******n
发帖数: 963 | 2 距离实用技术还有一段路，加油。
of
realization
,
flat
emergent
【在 m*****e 的大作中提到】
: Cao Yuan新作
: https://www.nature.com/articles/s41563-022-01287-1
: The discovery of correlated states and superconductivity in magic-angle
: twisted bilayer graphene (MATBG) established a new platform to explore
: interaction-driven and topological phenomena. However, despite multitudes of
: correlated phases observed in moiré systems, robust superconductivity
: appears the least common, found only in MATBG and more recently in magic-
: angle twisted trilayer graphene. Here we report the experimental realization
: of superconducting magic-angle twisted four-layer and five-layer graphene,
: hence establishing alternating twist magic-angle multilayer graphene as a
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