• Corpus ID: 235265844

Intrinsic one-dimensional conducting channels in the Kondo insulator SmB6

@inproceedings{Xu2021IntrinsicOC,
  title={Intrinsic one-dimensional conducting channels in the Kondo insulator SmB6},
  author={Ke Xu and Mark E. Barber and Eric Yue Ma and Jing Xia and Monica Ciomaga Hatnean and Geetha Balakrishnan and Jan Zaanen and Zhi-Xun Shen},
  year={2021}
}
Since its discovery as a Kondo insulator 50 years ago, SmB6 recently received a revival of interest due to detection of unexpected quantum oscillations in the insulating state, discovery of disorder-immune bulk transport, and proposals of correlation-driven topological physics. While recent transport results attribute the anomalous low temperature conduction to two-dimensional surface states, important alternatives, such as conduction channel residing in one-dimensional dislocation lines, have… 

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TLDR
Thickness-dependent transport measurements on doped SmB6 are reported, and it is shown that magnetic and non-magnetic doping results in contrasting behaviour that supports the conclusion that SmB 6 shows virtually no residual bulk conductivity.

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Samarium hexaboride (SmB 6 ) is an example of a Kondo insulator, in which strong electron correlations cause a band gap to open. SmB 6 hosts both a bulk insulating state and a conductive surface

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The Kondo insulator SmB6 is purported to develop into a robust topological insulator at low temperatures. Yet there are several puzzling and unexplained physical properties of the insulating bulk. It

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