Photorefractive effect and photochromism in the Fe-doped relaxor ferroelectric crystal Pb(Zn1∕3Nb2∕3)O3-PbTiO3
Photorefractive effect and photochromism in the Fe-doped relaxor ferroelectric crystal Pb(Zn1∕3Nb2∕3)O3-PbTiO3
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DOI：
10.1063/1.1782953
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发表时间：
2004-10
影响因子：
3.2
通讯作者：
Yoichi Sato;S. Abe;R. Fujimura;H. Ono;K. Oda;T. Shimura;K. Kuroda
中科院分区：
文献类型：
--
作者：
Yoichi Sato;S. Abe;R. Fujimura;H. Ono;K. Oda;T. Shimura;K. Kuroda
利用双光束耦合实验研究了掺铁的Pb（Zn 1 Snc 3 Nb 2 Snc 3）O3-PbTiO 3（PZN-PT）弛豫铁电单晶的光折变特性。用助熔剂溶液法生长了掺Fe：0.01wt%和掺Fe：0.1wt%的0.91PZN-0.09PT单晶。测量了样品的消光光谱、电光系数、光致吸收变化和光电导。最大增益系数达到21 cm-1，约为未掺杂PZN-PT的2倍。光栅形成率随Fe浓度的增加而减小。
The photorefractive properties of the iron-doped Pb(Zn1∕3Nb2∕3)O3-PbTiO3 (PZN-PT) relaxor ferroelectric single crystals were investigated by two-beam coupling experiments. The Fe:0.01wt%- and the Fe:0.1wt%-doped 0.91PZN-0.09PT single crystals were grown with the flux solution method. The Extinction spectrum, the electro-opric coefficient, the light-induced absorption change, and the photoconductivity were measured in these samples. The maximum gain coefficient reached to 21cm−1, which is about twice as large as that of undoped PZN-PT. The grating formation rate decreases with the Fe concentration.