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Dielectric/piezoelectric properties and temperature dependence of domain structure evolution in lead free single crystal
- Source :
-
Solid State Communications . Oct2009, Vol. 149 Issue 39/40, p1646-1649. 4p. - Publication Year :
- 2009
-
Abstract
- Abstract: (K0.5Na0.5)NbO3 (KNN) single crystals were grown using a high temperature flux method. The dielectric permittivity was measured as a function of temperature for [001]-oriented KNN single crystals. The ferroelectric phase transition temperatures, including the rhombohedral–orthorhombic , orthorhombic–tetragonal and tetragonal–cubic were found to be located at −149  ∘C, 205 ∘C and 393 ∘C, respectively. The domain structure evolution with an increasing temperature in [001]-oriented KNN single crystal was observed using polarized light microscopy (PLM), where three distinguished changes of the domain structures were found to occur at −150  ∘C, 213 ∘C and 400 ∘C, corresponding to the three phase transition temperatures. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00381098
- Volume :
- 149
- Issue :
- 39/40
- Database :
- Academic Search Index
- Journal :
- Solid State Communications
- Publication Type :
- Academic Journal
- Accession number :
- 44035320
- Full Text :
- https://doi.org/10.1016/j.ssc.2009.06.029