Epitaxial Ba2IrO4 thin-films grown on SrTiO 3 substrates by pulsed laser deposition

J. Nichols, O. B. Korneta, J. Terzic, G. Cao, J. W. Brill, S. S.A. Seo

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

We have synthesized epitaxial Ba2IrO4 (BIO) thin-films on SrTiO3 (001) substrates by pulsed laser deposition and studied their electronic structure by dc-transport and optical spectroscopic experiments. We have observed that BIO thin-films are insulating but close to the metal-insulator transition boundary with significantly smaller transport and optical gap energies than its sister compound, Sr2IrO4. Moreover, BIO thin-films have both an enhanced electronic bandwidth and electronic-correlation energy. Our results suggest that BIO thin-films have great potential for realizing the interesting physical properties predicted in layered iridates.

Original languageEnglish
Article number121913
JournalApplied Physics Letters
Volume104
Issue number12
DOIs
StatePublished - Mar 24 2014

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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