Synergetic Behavior in 2D Layered Material/Complex Oxide Heterostructures

Kyeong Tae Kang, Jeongmin Park, Dongseok Suh, Woo Seok Choi

Research output: Contribution to journalArticlepeer-review

40 Scopus citations

Abstract

The marriage between a 2D layered material (2DLM) and a complex transition metal oxide (TMO) results in a variety of physical and chemical phenomena that cannot be achieved in either material alone. Interesting recent discoveries in systems such as graphene/SrTiO3, graphene/LaAlO3/SrTiO3, graphene/ferroelectric oxide, MoS2/SrTiO3, and FeSe/SrTiO3 heterostructures include voltage scaling in field-effect transistors, charge state coupling across an interface, quantum conductance probing of the electrochemical activity, novel memory functions based on charge traps, and greatly enhanced superconductivity. In this context, various properties and functionalities appearing in numerous different 2DLM/TMO heterostructure systems are reviewed. The results imply that the multidimensional heterostructure approach based on the disparate material systems leads to an entirely new platform for the study of condensed matter physics and materials science. The heterostructures are also highly relevant technologically as each constituent material is a promising candidate for next-generation optoelectronic devices.

Original languageEnglish
Article number1803732
JournalAdvanced Materials
Volume31
Issue number34
DOIs
StatePublished - Aug 2019

Bibliographical note

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • 2D layered materials
  • SrTiO
  • graphene
  • heterostructures
  • quantum Hall conductance
  • transition metal oxides

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