Magneto-transport evidence for strong topological insulator phase in ZrTe5
Jingyue Wang,
Yuxuan Jiang,
Tianhao Zhao
et al.
Abstract:The identification of a non-trivial band topology usually relies on directly probing the protected surface/edge states. But, it is difficult to achieve electronically in narrow-gap topological materials due to the small (meV) energy scales. Here, we demonstrate that band inversion, a crucial ingredient of the non-trivial band topology, can serve as an alternative, experimentally accessible indicator. We show that an inverted band can lead to a four-fold splitting of the non-zero Landau levels, contrasting the … Show more
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