Growth of Bi2Se3 topological insulator films using a selenium cracker source

Theresa P. Ginley, Stephanie Law

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

In this article, the authors describe growth of high-quality Bi2Se3 topological insulator films using a selenium cracking source on c-plane sapphire substrates. Films are grown using molecular beam epitaxy and characterized by Hall effect measurements and atomic force microscopy. The use of a cracker sources results in films with low carrier density and reduced aging effects. Growth conditions giving the best electrical properties correspond with the best surface structure as determined by atomic force microscopy. This improved film quality opens the door to the creation of real electronic or spintronic devices based on these unique materials.

Original languageEnglish (US)
Article number02L105
JournalJournal of Vacuum Science and Technology B: Nanotechnology and Microelectronics
Volume34
Issue number2
DOIs
StatePublished - Mar 1 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

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