Experimental discovery of Weyl semimetal TaAs
Experimental discovery of Weyl semimetal TaAs
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DOI：
10.1007/s40843-015-0083-9
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发表时间：
2015-02
期刊：
影响因子：
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通讯作者：
Xianhui Chen
中科院分区：
文献类型：
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作者：
Xianhui Chen
电子邮件：chenxh@ustc。edu。我们可以检查表面费米弧是否存在。如图1a所示，一个封闭的费米曲面（FS）在表面布里渊区（BZ）只能穿过任意k环偶数次，而一个开放的费米弧可能穿过这个环奇数次。他们观察到FSs穿过闭环Г
Email: chenxh@ ustc. edu. cn examine whether surface Fermi arcs exist. As illustrated in Fig. 1a, a closed Fermi surface (FS) can only cross an arbitrary k-loop in the surface Brillouin zone (BZ) an even number of times, whereas an open Fermi arc can possibly cross this loop an odd number of times. They observed that the FSs cross the closed loop Г