Direct evidence of intercalation in a topological insulator turned superconductor

Tanmay Das; Somnath Bhattacharyya; Bhanu Prakash Joshi; A. Thamizhavel; S. Ramakrishnan

Direct evidence of intercalation in a topological insulator turned superconductor

Materials Science 2012-03-12 v1

Authors: Tanmay Das , Somnath Bhattacharyya , Bhanu Prakash Joshi , A. Thamizhavel , S. Ramakrishnan

Abstract

A topological insulator Bi2Se3 which shows superconducting property due to Cu doping has been studied using high resolution transmission electron microscopy which provides for the first time, the direct evidence of intercalation sites. A careful study exhibits the presence of two intercalation sites in this material when projected along the [-1-1 2 0] direction. Stoichiometry of the intercalated unit cell was also calculated from the projected potential.

Keywords

topological insulator superconductor intercalation Bi2Se3 Cu doping HRTEM

Cite

@article{arxiv.1203.2050,
  title  = {Direct evidence of intercalation in a topological insulator turned superconductor},
  author = {Tanmay Das and Somnath Bhattacharyya and Bhanu Prakash Joshi and A. Thamizhavel and S. Ramakrishnan},
  journal= {arXiv preprint arXiv:1203.2050},
  year   = {2012}
}

Comments

8 pages double spacing, 7 images

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