A dual quantum spin Hall insulator (IMAGE)
Caption
Led by Boston College physicist Qiong Ma, an international team working with single-atom thick crystals found TaIrTe4's transition between the two distinct topological states of insulation and conduction. The material exhibited zero electrical conductivity within its interior, while its boundaries remain conductive. The team’s investigation determined that the two topological states stem from disparate origins. The novel properties can serve as a promising platform for exploring exotic quantum phases and electromagnetism.
Credit
Qiong Ma, Boston College
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CC BY-NC-ND