“地毯式”生长法研制出期待已久的二维量子材料
几十年来,物理学家一直寻求一种实用的二维拓扑绝缘体:一种其内部阻碍电流通过但边缘可导电的超薄材料。在普通导线中,电子会不断碰撞缺陷,从而损失能量。但在二维拓扑绝缘体的边缘,自旋相反的电子沿相反方向运动,就像单向车道上的汽车一样,因此它们极少发生散射并损失能量。
Phys.org Quantum Physics
Publisher
Oct 13, 2026 at 9:30 PM UTC · 1 分钟阅读

几十年来,物理学家一直寻求一种实用的二维拓扑绝缘体:一种其内部阻碍电流通过但边缘可导电的超薄材料。在普通导线中,电子会不断碰撞缺陷,从而损失能量。但在二维拓扑绝缘体的边缘,自旋相反的电子沿相反方向运动,就像单向车道上的汽车一样,因此它们极少发生散射并损失能量。
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Originally reported by Phys.org Quantum Physics
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