NDLI: Intrinsic topological insulator Bi(1.5)Sb(0.5)Te(3-x)Se(x) thin crystals.

Content Provider	Europe PMC
Author	Wang, Wei Li, Li Zou, Wenqin He, Liang Song, Fengqi Zhang, Rong Wu, Xiaoshan Zhang, Fengming
Copyright Year	2015
Abstract	The quaternary topological insulator (Bi,Sb)2(Te,Se)3 has demonstrated topological surface states with an insulating bulk. Scientists have identified an optimized composition of Bi(1.5)Sb(0.5)Te(1.7)Se(1.3) with the highest resistivity reported. But the physics that drive to this composition remains unclear. Here we report the crystal structure and the magneto-transport properties of Bi(1.5)Sb(0.5)Te(3-x)Se(x) (BSTS) series. A correlation between the structure and the physical properties has been revealed. We found out that within the rhombohedral structure, the composition with most Te substituting Se has the highest resistivity. On the other hand, segregation of other composition phases will introduce much higher bulk concentration.
Journal	Scientific Reports [Sci Rep]
Volume Number	5
DOI	10.1038/srep07931
PubMed Central reference number	PMC4300459
PubMed reference number	25604579
e-ISSN	20452322
Language	English
Publisher	Nature Publishing Group
Publisher Date	2015-01-21
Access Restriction	Open
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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