Anomalous and Topological Hall effect in Cu doped Sb2Te3 Topological Insulator

Abhishek Singh; Vinod K Gangwar; Prashant Shahi; Debarati Pal; Rahul Singh; A. K. Ghosh; Swapnil Patil; Jinguang Cheng; Sandip Chatterjee

Anomalous and Topological Hall effect in Cu doped Sb2Te3 Topological Insulator

Mesoscale and Nanoscale Physics 2018-09-18 v1

Authors: Abhishek Singh , Vinod K Gangwar , Prashant Shahi , Debarati Pal , Rahul Singh , A. K. Ghosh , Swapnil Patil , Jinguang Cheng , Sandip Chatterjee

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Abstract

The magneto-transport and magnetization measurements of Sb1.90Cu0.10Te3 were performed at different temperatures and different fields. Magneto-transport measurement at high field indicates the coexistence of both bulk and surface states. The magnetization shows the induced antiferromagnetic ordering with Cu doping and the observed quantum oscillation in it indicates that magnetization in Sb1.90Cu0.10Te3 is the bulk property. The non linearity in Hall data suggests the existence of anomalous and topological Hall effect. The anomalous and topological Hall effect (THE) from measured hall data of Cu doped Sb2Te3 topological insulator have been evaluated.

Keywords

topological insulator Cu doped Sb2Te3 anomalous Hall effect topological Hall effect magneto-transport antiferromagnetic ordering

Cite

@article{arxiv.1809.05663,
  title  = {Anomalous and Topological Hall effect in Cu doped Sb2Te3 Topological Insulator},
  author = {Abhishek Singh and Vinod K Gangwar and Prashant Shahi and Debarati Pal and Rahul Singh and A. K. Ghosh and Swapnil Patil and Jinguang Cheng and Sandip Chatterjee},
  journal= {arXiv preprint arXiv:1809.05663},
  year   = {2018}
}

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15 pages, 5 figures

Anomalous and Topological Hall effect in Cu doped Sb2Te3 Topological Insulator

Abstract

Keywords

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