Atomic-Scale Electronic Spectra across BiFeO$_{3}$/La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ Complex Oxide Heterointerfaces

ORAL

Abstract

Atomic-scale evolution of electronic structures across BiFeO$_{3}$/La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ complex oxide heterointerfaces has been revealed using cross-sectional scanning tunneling microscopy and spectroscopy. Analysis of scanning tunneling spectroscopy results exploits the interfacial valence mismatch to influence the electrostatic configurations across the BiFeO$_{3}$/La$_{0.7}$Sr$_{0.3}$MnO$_{0.3}$ heterointerfaces. Spatially unit-cell-by-unit-cell resolved electronic states at the atomic level reveal how the control of material interfaces at the atomic level to determine the ferroelectric polarization in BiFeO$_{3}$.

–

Authors

  • Ya-Ping Chiu

    • Department of Physics, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan

  • Bo-Chao Huang

    • Department of Physics, National Sun Yat-sen University, Kaohsiung, 80424, Taiwan

  • Pu Yu

    • Department of Physics, University of California, Berkeley, Berkeley, CA 94720,USA

  • Ramamoorthy Ramesh

    • Department of Physics, University of California, Berkeley, Berkeley, CA 94720,USA

  • Ying-Hao Chu

    • Institute of Physics, National Chiao Tung University, Hsinchu 30010, Taiwan