Anisotropic electronic structure of epitaxial (110) RuO2 films

ORAL

Abstract

Anisotropy of correlated electrons provides both fundamental understanding and inspiration for future device applications. The (110)-oriented RuO2 rutile film on rutile TiO2 (110) substrates provides highly anisotropic epitaxial strain along two in-plane directions along [001] and [1 0]. These epitaxial strains can further be tailored via film thickness enabling potentially a systematic control over anisotropic electronic behavior in RuO2 films. In this talk, we will present a systematic growth of RuO2 films on TiO2 (110) substrates using hybrid molecular beam epitaxy. Combining X-ray and electron diffractions, X-ray absorption spectroscopy, temperature-dependent magnetotransport, and optical spectroscopy, we will discuss the relationship between crystal structure, orbital hybridization, and the electrical transport in RuO2 films.

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Presenters

  • SEUNG GYO JEONG

    University of Minnesota, Twin Cities

Authors

  • SEUNG GYO JEONG

    University of Minnesota, Twin Cities

  • In Hyeok Choi

    Gwangju Institute of Science and Technology

  • Jin Young Oh

    Sungkyunkwan University, South Korea, Sungkyunkwan University, SUNGKYUNKWAN UNIVERSITY

  • Sreejith Thampan Nair

    University of Minnesota, Twin Cities

  • Ambrose Seo

    University of Kentucky

  • Woo Seok Choi

    Sungkyunkwan University, South Korea, Sungkyunkwan University, Department of Physics, Sungkyunkwan University

  • Turan Birol

    University of Minnesota

  • Jong Seok Lee

    Gwangju Institute of Science and Technology

  • Bharat Jalan

    University of Minnesota