Ferroelectric Order Control of the Dirac-Semimetal Phase in GeTe-Sb2Te3 Superlattices

J. Tominaga, A. V. Kolobov, P. Fons, T. Nakano, S. Murakami

Research output: Contribution to journalArticlepeer-review

150 Citations (Scopus)


A superlattice made of a topological insulator (Sb2Te3) and a normal insulator (ferroelectric GeTe), also called an interfacial phase-change material, are switched between the Dirac semimetal and gapped phases by applying an external electric field, which provides a platform to study topological insulators and opens new possibilities for designing phase-change memory devices.

Original languageEnglish
Article number1300027
JournalAdvanced Materials Interfaces
Issue number1
Publication statusPublished - 2014 Feb 1
Externally publishedYes


  • Dirac semi-metal
  • Rashba splitting
  • phase-change memory
  • topological insulator

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering


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