A novel quasi-one-dimensional topological insulator in bismuth iodide β-Bi4I4.

  title={A novel quasi-one-dimensional topological insulator in bismuth iodide β-Bi4I4.},
  author={Gabriel Aut{\`e}s and Anna Isaeva and Luca Moreschini and Jens Christian Johannsen and Andrea Pisoni and Ryo Mori and Wentao Zhang and Taisia G. Filatova and Aleksey N. Kuznetsov and L. Forr{\'o} and Wouter Van den Broek and Yeongkwan Kim and Keun Su Kim and Alessandra Lanzara and Jonathan D Denlinger and Eli Rotenberg and Aaron A. Bostwick and Mauro Grioni and Oleg V Yazyev},
  journal={Nature materials},
  volume={15 2},
Recent progress in the field of topological states of matter has largely been initiated by the discovery of bismuth and antimony chalcogenide bulk topological insulators (TIs; refs ,,,), followed by closely related ternary compounds and predictions of several weak TIs (refs ,,). However, both the conceptual richness of Z2 classification of TIs as well as their structural and compositional diversity are far from being fully exploited. Here, a new Z2 topological insulator is theoretically… CONTINUE READING

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