Large Piezoelectric Response in Lead-Free (Bi0.5Na0.5)TiO3-Based Perovskite Thin Films by Ferroelastic Domain Switching: Beyond the Morphotropic Phase Boundary Paradigm

Author(s):  
Takao Shimizu ◽  
Miyu Hasegawa ◽  
Keisuke Ishihama ◽  
Akinori Tateyama ◽  
Wakiko Yamaoka ◽  
...  

2010 ◽  
Vol 3 (11) ◽  
pp. 111501 ◽  
Author(s):  
Takakiyo Harigai ◽  
Yoshiaki Tanaka ◽  
Hideaki Adachi ◽  
Eiji Fujii






2013 ◽  
Vol 1547 ◽  
pp. 45-52
Author(s):  
Albertus D. Handoko ◽  
Gregory K. L. Goh

ABSTRACTLead free niobate solid solutions can exhibit piezoelectric properties comparable to that of lead zirconate titanate piezoelectrics in the vicinity of its morphotropic phase boundary (MPB). Here we describe how (Na,K)NbO3 and (Na,K)NbO3-LiTaO3 solid solution thin films can be grown epitaxially by the hydrothermal method at temperatures of 200 °C or below in water and be made ferro- and piezoelectrically active by a simple 2 step post growth treatment.



2005 ◽  
Vol 20 (4) ◽  
pp. 787-790 ◽  
Author(s):  
Yong Kwan Kim ◽  
Sang Sub Kim ◽  
Bongki Lee ◽  
Hyunjung Shin ◽  
Sunggi Baik

The relationship between crystal structure and piezo-response was investigated in epitaxially grown PbZr1−xTixO3 (PZT) thin films on Pt(001)/MgO(001) with a thin PbTiO3 interlayer. Insertion of the interlayer resulted in significant relaxation ofthe strain that could be developed in the course of deposition of the PZT films, consequently leading us to single out only the effect of composition. Composition of the morphotropic phase boundary (MPB), at which tetragonal and rhombohedral phases are mixed with the same volume fraction, was found to be ∼0.55 in Ti/(Zr + Ti) ratio in our films, which is close to the value for bulk polycrystalline PZT (∼0.50). The piezoelectric response peaks were two times higher in the MPB regime than in the single phase regime due to structural instability caused by the coexistence of two phases. The results indicate that epitaxial PZT films having the MPB composition are advantageous over those of other compositions for nano-storage devices based on scanning force microscopy.



2011 ◽  
Vol 65 (17-18) ◽  
pp. 2714-2716 ◽  
Author(s):  
Iñigo Bretos ◽  
David Alonso-San José ◽  
Ricardo Jiménez ◽  
Jesús Ricote ◽  
M. Lourdes Calzada




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