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Full Description
This book presents
the transport studies of topological insulator thin films grown by molecular
beam epitaxy. Through band structure engineering, the ideal topological
insulators, (Bi1-xSbx)2Te3 ternary alloys, are successfully fabricated, which
possess truly insulating bulk and tunable conducting surface states. Further
transport measurements on these ternary alloys reveal a disentanglement between
the magnetoelectric and thermoelectric properties. In magnetically doped
topological insulators, the fascinating quantum anomalous Hall effect was
experimentally observed for the first time. Moreover, the topology-driven
magnetic quantum phase transition was Systematically controlled by varying the
strength of the spin-orbital coupling. Readers will not only benefit from the
description of the technique of transport measurements, but will also be inspired by
the understanding of topological insulators.
Contents
Introduction.- Experimental setup and methods.- Band structure engineering in TIs.- Topology-driven magnetic quantum phase transition.- Quantum anomalous Hall effect.- Dichotomy between electrical and thermoelectric properties.- Concluding remarks.- References.- Acknowledgement.- Appendix A.- Appendix B.- Publications.



