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2008 | 6 | 3 | 450-453
Tytuł artykułu

Phase transition in Bi8Fe6Ti3O27 multiferroic ceramics

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The polycrystalline Bi8Fe6Ti3O27 compound was prepared by a high-temperature solid-state reaction technique. Preliminary structural analysis by X-ray diffraction (XRD) confirms the formation of a single-phase compound in an orthorhombic crystal system at room temperature. The elemental content of the compound was analyzed by EDAX microanalysis. Microstructural analysis by scanning electron microscopy (SEM) shows that the compound has well defined grains, which are distributed uniformly throughout the surface of the pellet sample. Detailed studies of temperature-dependent dielectric response at various frequencies show dielectric anomalies at 380, 389 and 403°C for 10 kHz, 100 kHz, and 1 MHz respectively. The hysteresis loop observed by applying an electric field of 12 kV/cm on the poled sample with smaller remanent polarization supports the existence of ferroelectricity in this material. The value of d33 of the compound was found to be 19 pC/N.
Wydawca

Czasopismo
Rocznik
Tom
6
Numer
3
Strony
450-453
Opis fizyczny
Daty
wydano
2008-09-01
online
2008-07-17
Twórcy
  • Department of Physics and Meteorology, Indian Institute of Technology, Kharagpur, 721 302, India
Bibliografia
  • [1] B. Auruvillius, P.H. Fang, Phys. Rev. 126, 893 (1962) http://dx.doi.org/10.1103/PhysRev.126.893[Crossref]
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  • [9] R.S. Singh, T. Bhimasankaram, G.S. Kumar, S.V. Suryanarayana, Sol. State Comm. 91, 567 (1994) http://dx.doi.org/10.1016/0038-1098(94)90376-X[Crossref]
  • [10] POWDMULT: An interactive powder diffraction data interpretations and indexing Program, Version 2.1, E. WU School of Physical Sciences, Flinder University of South Australia Bradford Park, SA 5042, Australia.
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  • [14] J. Yeon, P. Shiv Halasyamani, I.V. Kityk, Mat. Lett. 62, 1082 (2008) http://dx.doi.org/10.1016/j.matlet.2007.07.048[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-008-0064-7
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