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Jin, Hosub
Quantum Materials Design Lab
Research Interests
  • Spin-orbit coupling, electron-correlation, topological quantum phases

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Topological Oxide Insulator in Cubic Perovskite Structure

Cited 8 times inthomson ciCited 7 times inthomson ci
Title
Topological Oxide Insulator in Cubic Perovskite Structure
Author
Jin, HosubRhim, Sonny HIm, JinoFreeman, Arthur J
Keywords
SINGLE DIRAC CONE; COATED CONDUCTORS; BUFFER LAYERS; SURFACE; BI2SE3; INTERFACES; PHYSICS; STATES
Issue Date
2013-04
Publisher
NATURE PUBLISHING GROUP
Citation
SCIENTIFIC REPORTS, v.3, no., pp.1651 -
Abstract
The emergence of topologically protected conducting states with the chiral spin texture is the most prominent feature at the surface of topological insulators. On the application side, large band gap and high resistivity to distinguish surface from bulk degrees of freedom should be guaranteed for the full usage of the surface states. Here, we suggest that the oxide cubic perovskite YBiO3, more than just an oxide, defines itself as a new three-dimensional topological insulator exhibiting both a large bulk band gap and a high resistivity. Based on first-principles calculations varying the spin-orbit coupling strength, the non-trivial band topology of YBiO3 is investigated, where the spin-orbit coupling of the Bi 6p orbital plays a crucial role. Taking the exquisite synthesis techniques in oxide electronics into account, YBiO3 can also be used to provide various interface configurations hosting exotic topological phenomena combined with other quantum phases.
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DOI
10.1038/srep01651
ISSN
2045-2322
Appears in Collections:
PHY_Journal Papers
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