%0 Journal Article
%T Effects of Interfacial Polarization on Voltage Tunability of Pb(Fe1/2Nb1/2)1-xTixO3 Single Crystals<br>
%A LIU Kui
%A ZHANG Xin-Yi
%A XIAO Jing-Zhong
%A <br>
%J 中国物理快报
%D 2009
%I 
%X The voltage tunability of Pb(Fe1/2Nb1/2)1-xTixO3 single crystals is investigated at a low electric field (<130 V/cm) in a low frequency range (<1 MHz). The results show that the capacitance is strongly suppressed by the applied dc biases for both the rhombohedral sample and the tetragonal sample. A negative voltage tunability is only detected in the tetragonal sample. The origin of the giant tunability and the negative tunability is discussed based on the multipolarization-mechanism model and the equivalent circuit model, respectively. It is ascribed to the interfacial polarization at the interface of electrode/sample.
%K 77
%K 22
%K -d
%K 77
%K 84
%K Dy
%K 77
%K 84
%K Lf
%K 77
%K 90
%K +k<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=60D01F2B0D9FEE44A3A27E5598ED9336&yid=DE12191FBD62783C&vid=96C778EE049EE47D&iid=F3090AE9B60B7ED1&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0