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Dielectric/piezoelectric properties and temperature dependence of domain structure evolution in lead free (K0.5 Na0.5) NbO3 single crystal

Journal Article


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 TR - O, orthorhombic-tetragonal TO - T and tetragonal-cubic TC were found to be located at -149  {ring operator}C, 205 {ring operator}C and 393 {ring operator}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  {ring operator}C, 213 {ring operator}C and 400 {ring operator}C, corresponding to the three phase transition temperatures. © 2009 Elsevier Ltd. All rights reserved.

Publication Date


  • 2009

Citation


  • Lin, D., Li, Z., Zhang, S., Xu, Z., & Yao, X. (2009). Dielectric/piezoelectric properties and temperature dependence of domain structure evolution in lead free (K0.5 Na0.5) NbO3 single crystal. Solid State Communications, 149(39-40), 1646-1649. doi:10.1016/j.ssc.2009.06.029

Scopus Eid


  • 2-s2.0-68949170986

Start Page


  • 1646

End Page


  • 1649

Volume


  • 149

Issue


  • 39-40

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 TR - O, orthorhombic-tetragonal TO - T and tetragonal-cubic TC were found to be located at -149  {ring operator}C, 205 {ring operator}C and 393 {ring operator}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  {ring operator}C, 213 {ring operator}C and 400 {ring operator}C, corresponding to the three phase transition temperatures. © 2009 Elsevier Ltd. All rights reserved.

Publication Date


  • 2009

Citation


  • Lin, D., Li, Z., Zhang, S., Xu, Z., & Yao, X. (2009). Dielectric/piezoelectric properties and temperature dependence of domain structure evolution in lead free (K0.5 Na0.5) NbO3 single crystal. Solid State Communications, 149(39-40), 1646-1649. doi:10.1016/j.ssc.2009.06.029

Scopus Eid


  • 2-s2.0-68949170986

Start Page


  • 1646

End Page


  • 1649

Volume


  • 149

Issue


  • 39-40