Reactive molecular beam epitaxial growth and in situ photoemission spectroscopy study of iridate superlattices

C. C. Fan, Z. T. Liu, S. H. Cai, Z. Wang, P. Xiang, K. L. Zhang, W. L. Liu, J. S. Liu, P. Wang, Y. Zheng, D. W. Shen, L. X. You

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)

Abstract

High-quality (001)-oriented perovskite [(SrIrO3)m/(SrTiO3)] superlattices (m=1/2, 1, 2, 3 and ∞) films have been grown on SrTiO3(001) epitaxially using reactive molecular beam epitaxy. Compared to previously reported superlattices synthesized by pulsed laser deposition, our superlattices exhibit superior crystalline, interface and surface structure, which have been confirmed by high-resolution X-ray diffraction, scanning transmission electron microscopy and atomic force microscopy, respectively. The transport measurements confirm a novel insulator-metal transition with the change of dimensionality in these superlattices, and our first systematic in situ photoemission spectroscopy study indicates that the increasing strength of effective correlations induced by reducing dimensionality would be the dominating origin of this transition.

Original languageEnglish
Article number085307
JournalAIP Advances
Volume7
Issue number8
DOIs
Publication statusPublished - 16 Aug 2017
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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