High ferroelectric polarization in c-oriented BaTiO3 epitaxial thin films on SrTiO3/Si(001)
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain); Univ. Autonoma de Barcelona, Barcelona (Spain)
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain); National Taipei Univ. of Technology (TAIPEI TECH), Taipei (Taiwan)
- Institut de Ciencia de Materials de Barcelona (ICMAB-CSIC), Barcelona (Spain)
- Institut des Nanotechnologies de Lyon (INL), UMR CNRS, Ecole Centrale de Lyon, Ecully Cedex (France)
- 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
Cited by: 21 works
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