Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures

@article{Wang2003EpitaxialBM,
  title={Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures},
  author={J. Wang and Jeffrey B. Neaton and Hong Zheng and Valanoor Nagarajan and Satishchandra B. Ogale and B. T. Liu and Dwight Viehland and Venugopalan Vaithyanathan and Darrell G. Schlom and Umesh V. Waghmare and Nicola A. Spaldin and K. M. Rabe and Manfred R. Wuttig and Ramamoorthy Ramesh},
  journal={Science},
  year={2003},
  volume={299},
  pages={1719 - 1722}
}
Enhancement of polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, is reported. Structure analysis indicates that the crystal structure of film is monoclinic in contrast to bulk, which is rhombohedral. The films display a room-temperature spontaneous polarization (50 to 60 microcoulombs per square centimeter) almost an order of magnitude higher than that of the bulk (6.1 microcoulombs per square centimeter). The observed enhancement… 

Comment on "Epitaxial BiFeO3 Multiferroic Thin Film Heterostructures"

It is argued that epitaxial strain does not enhance the magnetization and polarization in BiFeO3 and suggests the potential for novel devices that exploit the anticipated strain-mediated magnetoelectric coupling between the two ordered ground states.

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Effect of epitaxial strain on ferroelectric polarization in multiferroic BiFeO3 films

Multiferroic BiFeO3 epitaxial films with thickness ranging from 40 nm to 960 nm were grown by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 bottom electrodes. X-ray characterization

Weak ferromagnetism in La-doped BiFeO3 multiferroic thin films

Bi1−xLaxFeO3 thin films (x = 0.0, 0.3, 0.5) were grown on glass substrates by thermal physical vapor deposition. The monoclinically distorted crystal structure of the films was revealed by x-ray

Large ferroelectric polarization in antiferromagnetic BiFe0.5Cr0.5O3 epitaxial films

Multiferroic BiFe0.5Cr0.5O3 solid solution epitaxial films were grown by pulsed laser deposition on SrTiO3 (001) substrates with SrRuO3 bottom electrodes. Formation of the metastable composition in

Strain dependence of polarization and piezoelectric response in epitaxial BiFeO3 thin films

  • C. DaumontW. Ren M. Bibes
  • Materials Science
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2012
It is found that polarization and the piezoelectric coefficient increase by about 20% and 250%, respectively, in this strain range and these trends are well reproduced by first-principles-based techniques.

Ferroelectric properties and dielectric responses of multiferroic BiFeO3 films grown by RF magnetron sputtering

Multiferroic BiFeO3 films have been grown on LaNiO3−x/SrTiO3 and Pt/Si substrates by RF magnetron sputtering. The films showed fully saturated ferroelectric hysteresis loops with large remanent

Multiferroic composite ferroelectric-ferromagnetic films

Multiferroic behavior was confirmed for epitaxial composite ferroelectric-ferromagnetic heterostructures, using a ferromagnetic crystal as both substrate and straining medium. Heterostructures having
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