DEFECT PHYSICS AND INTRINSIC p-TYPE CONDUCTIVITY IN TOPOLOGICAL INSULATOR AuTlS2
DEFECT PHYSICS AND INTRINSIC p-TYPE CONDUCTIVITY IN TOPOLOGICAL INSULATOR AuTlS2
复制标题
拓扑绝缘体 AuTlS2 中的缺陷物理和本征 p 型电导率
DOI:
10.1142/s0217984914500080
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发表时间:
2014-01
影响因子:
1.9
通讯作者:
Zhang Ying
中科院分区:
文献类型:
--
作者:
Zhang Jian-Min;Feng Wangxiang;Yang Pei;Shi Lijie;Zhang Ying
Using first-principles calculations, we systematically investigate the defect physics in topological insulator AuTlS2. An optimal growth condition is explicitly proposed to guide for the experimental synthesis. The stabilities of various native point defects under different growth conditions and different carrier environments are studied in detail. We show that the p-type conductivity is strongly preferred in AuTlS2, and the band gap can be engineered by the control of intrinsic defects. Our results demonstrate that AuTlS2 is an ideal p-type topological insulator which can be easily integrated with traditional semiconductor.
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