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Title: High ferroelectric polarization in c-oriented BaTiO3 epitaxial thin films on SrTiO3/Si(001)

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.4962836· OSTI ID:1326550
 [1];  [2];  [3];  [3];  [4]; ORCiD logo [4];  [5];  [3];  [3];  [4]; ORCiD logo [3]
  1. Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain); Univ. Autonoma de Barcelona, Barcelona (Spain)
  2. Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain); National Taipei Univ. of Technology (TAIPEI TECH), Taipei (Taiwan)
  3. Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain)
  4. Institut des Nanotechnologies de Lyon (INL), UMR CNRS, Ecole Centrale de Lyon, Ecully Cedex (France)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The integration of epitaxial BaTiO3 films on silicon, combining c-orientation, surface flatness, and high ferroelectric polarization is of main interest towards its use in memory devices. This combination of properties has been only achieved so far by using yttria-stabilized zirconia buffer layers. Here, the all-perovskite BaTiO3/LaNiO3/SrTiO3 heterostructure is grown monolithically on Si(001). The BaTiO3 films are epitaxial and c-oriented and present low surface roughness and high remnant ferroelectric polarization around 6 μC/cm2. Lastly, this result paves the way towards the fabrication of lead-free BaTiO3 ferroelectric memories on silicon platforms.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1326550
Journal Information:
Applied Physics Letters, Vol. 109, Issue 12; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 21 works
Citation information provided by
Web of Science

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Cited By (7)

Complementary Resistive Switching Using Metal–Ferroelectric–Metal Tunnel Junctions journal February 2019
Epitaxial growth of (111) BaTiO3 thin films on (0002) GaN substrates with SrTiO3/TiN buffer layers journal April 2019
Tailoring Lattice Strain and Ferroelectric Polarization of Epitaxial BaTiO3 Thin Films on Si(001) journal January 2018
Selectable texture in epitaxial ferroelectric BaTiO 3 films integrated with silicon journal January 2018
Control of misfit strain in ferroelectric BaTiO 3 thin-film capacitors with SrRuO 3 -based electrodes on (Ba, Sr)TiO 3 -buffered SrTiO 3 substrates journal July 2018
Enhanced ferroelectricity in epitaxial Hf 0.5 Zr 0.5 O 2 thin films integrated with Si(001) using SrTiO 3 templates journal June 2019
Tailoring Lattice Strain and Ferroelectric Polarization of Epitaxial BaTiO3 Thin Films on Si(001) text January 2018