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Chinese researchers fabricate rhombohedral graphene for quantum chips

The work, published in Science, describes making rhombohedral graphene at purity and size previously considered unachievable and says it had been too unstable for scale.

Reported · Written up by our desk · China

Graphite has long underpinned industries from steelmaking to battery electrodes, and now research from China points to a potential new use in quantum computing. The study led by Liu Kaihui reports a way to fabricate rhombohedral graphene, a form of graphene prized for hosting exotic quantum states.

According to the research described in Science, the team achieved rhombohedral graphene purity and size levels that had not been reached before. The paper also frames a key roadblock as instability, saying the material was previously too unstable to produce at scale.

A co-first author, Zhang Zhibin, said that until now the only way to obtain rhombohedral graphene was through mechanical exfoliation, a method that is difficult to scale for manufacturing. The breakthrough suggests a more producible route toward components that could support next generation quantum chips.

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