Bulk-Surface Transport Separation and Topological Surface States Modulation of TI–TI Heterostructures
Yueqian Zheng,
Tao Xu,
Xuan Wang
et al.
Abstract:In this study, we prepare topological insulator (TI) heterostructures (TI−TI) with a thickness of 25 nm and various interlayer distances, utilizing the laser molecular beam epitaxy (LMBE) system. Our characterization analysis revealed high-quality morphological features and distinct heterolayered structures. Moreover, we successfully isolated bulk-surface transport properties by employing the comprehensive physical property measurement system (PPMS) and terahertz time-domain spectroscopy (THz-TDS). Compared to… Show more
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