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Marinova, Maya [Author]; Rault, Julien E. [Author]; Garcia, Vincent [Author]; Fusil, Stéphane [Author]; Barthélémy, Agnès [Author]; Stéphan, Odile [Author]; Colliex, Christian [Author]; Bibes, Manuel [Author]; Gloter, Alexandre [Author]; Nemsak, Slavomir [Author]; Palsson, Gunnar K. [Author]; Rueff, Jean-Pascal [Author]; Fadley, Charles S. [Author]; Carrétéro, Cécile [Author]; Yamada, Hiroyuki [Author]; March, Katia [Author]

Depth Profiling Charge Accumulation from a Ferroelectric into a Doped Mott Insulator

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  • Media type: E-Article
  • Title: Depth Profiling Charge Accumulation from a Ferroelectric into a Doped Mott Insulator
  • Contributor: Marinova, Maya [Author]; Rault, Julien E. [Author]; Garcia, Vincent [Author]; Fusil, Stéphane [Author]; Barthélémy, Agnès [Author]; Stéphan, Odile [Author]; Colliex, Christian [Author]; Bibes, Manuel [Author]; Gloter, Alexandre [Author]; Nemsak, Slavomir [Author]; Palsson, Gunnar K. [Author]; Rueff, Jean-Pascal [Author]; Fadley, Charles S. [Author]; Carrétéro, Cécile [Author]; Yamada, Hiroyuki [Author]; March, Katia [Author]
  • Published: ACS Publ., 2015
  • Published in: Nano letters 15(4), 2533 - 2541 (2015). doi:10.1021/acs.nanolett.5b00104
  • Language: English
  • DOI: https://doi.org/10.1021/acs.nanolett.5b00104
  • ISSN: 1530-6992; 1530-6984
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: The electric field control of functional properties is a crucial goal in oxide-based electronics. Nonvolatile switching between different resistivity or magnetic states in an oxide channel can be achieved through charge accumulation or depletion from an adjacent ferroelectric. However, the way in which charge distributes near the interface between the ferroelectric and the oxide remains poorly known, which limits our understanding of such switching effects. Here, we use a first-of-a-kind combination of scanning transmission electron microscopy with electron energy loss spectroscopy, near-total-reflection hard X-ray photoemission spectroscopy, and ab initio theory to address this issue. We achieve a direct, quantitative, atomic-scale characterization of the polarization-induced charge density changes at the interface between the ferroelectric BiFeO3 and the doped Mott insulator Ca1–xCexMnO3, thus providing insight on how interface-engineering can enhance these switching effects.
  • Access State: Open Access