Journal
APPLIED PHYSICS LETTERS
Volume 81, Issue 5, Pages 892-894Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1497435
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In this letter, the shear-mode piezoelectric and electromechanical properties of 0.55Pb(Yb1/2Nb1/2)O-3-0.45PbTiO(3) (PYNT45) single crystals are reported. The piezoelectric coefficients d(15) and g(15) were found to be 2100 pC/N and 0.064 Vm/N, respectively, with an electromechanical coupling coefficient k(15) of 91% at room temperature. With increasing temperature, the values decreased dramatically above 168 degreesC, corresponding to the ferroelectric-ferroelectric phase transition temperature. In contrast to 0.955Pb(Zn1/3Nb2/3)O-3-0.045PbTiO(3) single crystals, PYNT45 crystals exhibit a larger g(15) and the useful temperature range is significantly expanded. High-temperature aging experiments showed that PYNT45 single crystals exhibit good domain stability. (C) 2002 American Institute of Physics.
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