Influence of dc-bias on phase stability in Mn-doped Na0.5Bi0.5TiO3-5.6 at. %BaTiO3 single crystals

Wenwei Ge; Hu Cao; Jiefang Li; Viehland, D.; Qinhui Zhang; Haosu Luo
October 2009
Applied Physics Letters;10/19/2009, Vol. 95 Issue 16, p162903
Academic Journal
Mn-doped Na0.5Bi0.5TiO3-5.6 at. %BaTiO3 (Mn:NBT-5.6%BT) single crystals were grown by a top-seeded solution growth method. Tetragonal and rhombohedral phases were found to coexist in the as-grown condition. The dielectric and structural properties were studied as a function of temperature under dc electrical bias. An induced phase stability change from rhombohedral to tetragonal phases occurred under an electric-field applied along the <001> direction.


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