Vasudevan, R.K., Bogle, K.A., Kumar, A., Jesse, S., Magaraggia, R., Stamps, R.L. , Ogale, S.B., Potdar, H.S. and Nagarajan, V. (2011) Ferroelectric and electrical characterization of multiferroic BiFeO3 at the single nanoparticle level. Applied Physics Letters, 99(25), p. 252905. (doi: 10.1063/1.3671392)
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Publisher's URL: http://dx.doi.org/10.1063/1.3671392
Abstract
Ferroelectric BiFeO<sub>3</sub> (BFO) nanoparticles deposited on epitaxial substrates of SrRuO<sub>3</sub> (SRO) and La<sub>1−x</sub>Sr<sub>x</sub>MnO<sub>3</sub> (LSMO) were studied using band excitation piezoresponse spectroscopy (BEPS), piezoresponse force microscopy (PFM), and ferromagnetic resonance (FMR). BEPS confirms that the nanoparticles are ferroelectric in nature. Switching behavior of nanoparticle clusters were studied and showed evidence for inhomogeneous switching. The dimensionality of domains within nanoparticles was found to be fractal in nature, with a dimensionality constant of ∼1.4, on par with ferroelectric BFO thin-films under 100 nm in thickness. Ferromagnetic resonance studies indicate BFO nanoparticles only weakly affect the magnetic response of LSMO.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Stamps, Professor Robert and Magaraggia, Mr Rhet |
| Authors: | Vasudevan, R.K., Bogle, K.A., Kumar, A., Jesse, S., Magaraggia, R., Stamps, R.L., Ogale, S.B., Potdar, H.S., and Nagarajan, V. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Applied Physics Letters |
| ISSN: | 0003-6951 |
| ISSN (Online): | 1077-3118 |
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