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|Title:||Overpoling resistance of -poled Pb (Mg13 Nb 2/3)O3 -PbTiO3 single crystals|
|Authors:||Shanthi, M. |
|Citation:||Shanthi, M., Chia, S.M., Lim, L.C. (2005-11-14). Overpoling resistance of -poled Pb (Mg13 Nb 2/3)O3 -PbTiO3 single crystals. Applied Physics Letters 87 (20) : 1-3. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2130716|
|Abstract:||-poled flux-grown Pb (Mg13 Nb23) O3 -PbTi O3 (PMN-32%PT) single crystals are susceptible to overpoling at 0.4 kVmm and higher fields, leading to degraded properties. This has been linked to the presence of an appreciable amount of the orthorhombic phase induced by the high poling fields. In contrast, flux-grown PMN-30%PT and PMN-31%PT single crystals show no signs of overpoling up to 2.0 kVmm, both of which remain predominantly rhombohedral with a small amount of induced orthorhombic phase. Among the three compositions examined, flux-grown PMN-30%PT single crystal gives the best -poled properties, with KT =5500-6000, d31 =2100-2600 pCN, and k31 =0.90-0.94. The present work further shows that, for a given crystal composition, flux-grown PMN-PT single crystals exhibit superior overpoling resistance to their melt-grown counterparts. © 2005 American Institute of Physics.|
|Source Title:||Applied Physics Letters|
|Appears in Collections:||Staff Publications|
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