Dynamic response of polar nanoregions under an electric field in a paraelectric KTa0.61Nb0.39O3 single crystal near the para-ferroelectric phase boundary
作者： Hao Tian , Bo Yao , Lei Wang , Peng Tan , Xiangda Meng
DOI: 10.1038/SREP13751
关键词: Low frequency 、 Dielectric 、 Condensed matter physics 、 Materials science 、 Electric field 、 Single crystal 、 Phase boundary 、 Polar 、 Ferroelectricity 、 Crystal
摘要: The dynamic response of polar nanoregions under an AC electric field was investigated by measuring the frequency dependence quadratic electro-optic (QEO) effect in a paraelectric KTa0.61Nb0.39O3 single crystal near para-ferroelectric phase boundary (0 °C < T-Tc < 13 °C). QEO coefficient R11 − R12 reached values as large 5.96 × 10−15 m2/V2 at low (500 Hz) and gradually decreased to nearly stable value increased 300 kHz. Furthermore, distortion observed disappeared tended towards stability. giant attributed rearrangement its anomalous can be explained considering asymmetric distribution nanoregions.
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Kofi Korsah, Roger Kisner, Lynn Boatner, Hans Christen, Deidre Paris, Preliminary investigation of KTN as a surface acoustic wave infrared/thermal detector Sensors and Actuators A: Physical. ,vol. 119, pp. 358- 364 ,(2005) , 10.1016/J.SNA.2004.09.024
J. Toulouse, The Three Characteristic Temperatures of Relaxor Dynamics and Their Meaning Ferroelectrics. ,vol. 369, pp. 203- 213 ,(2008) , 10.1080/08838150802378160
Xuping Wang, Bing Liu, Yuguo Yang, Yuanyuan Zhang, Xianshun Lv, Guanglie Hong, Rong Shu, Haohai Yu, Jiyang Wang, Anomalous laser deflection phenomenon based on the interaction of electro-optic and graded refractivity effects in Cu-doped KTa1−xNbxO3 crystal Applied Physics Letters. ,vol. 105, pp. 051910- ,(2014) , 10.1063/1.4892663
E. DelRe, E. Spinozzi, A. J. Agranat, C. Conti, Scale-free optics and diffractionless waves in nanodisordered ferroelectrics Nature Photonics. ,vol. 5, pp. 39- 42 ,(2011) , 10.1038/NPHOTON.2010.285
R. Clarke, J. C. Burfoot, The diffuse phase transition in potassium strontium niobate Ferroelectrics. ,vol. 8, pp. 505- 506 ,(1974) , 10.1080/00150197408234141
Noam Sapiens, Aharon Weissbrod, Aharon J. Agranat, Fast electroholographic switching. Optics Letters. ,vol. 34, pp. 353- 355 ,(2009) , 10.1364/OL.34.000353
Koichiro Nakamura, Jun Miyazu, Yuzo Sasaki, Tadayuki Imai, Masahiro Sasaura, Kazuo Fujiura, Space-charge-controlled electro-optic effect: Optical beam deflection by electro-optic effect and space-charge-controlled electrical conduction Journal of Applied Physics. ,vol. 104, pp. 013105- ,(2008) , 10.1063/1.2949394
Lei Wang, Hao Tian, Xiangda Meng, Huishun Chen, Zhongxiang Zhou, Yanqing Shen, Field-induced enhancement of voltage-controlled diffractive properties in paraelectric iron and manganese co-doped potassium–tantalate–niobate crystal Applied Physics Express. ,vol. 7, pp. 112601- ,(2014) , 10.7567/APEX.7.112601
Hao Tian, Bo Yao, Chengpeng Hu, Xiangda Meng, Zhongxiang Zhou, Impact of polar nanoregions on the quadratic electro-optic effect in K0.95Na0.05Ta1−xNbxO3 crystals near the Curie temperature Applied Physics Express. ,vol. 7, pp. 062601- ,(2014) , 10.7567/APEX.7.062601
Rudolf Hofmeister, Amnon Yariv, Aharon Agranat, Growth and characterization of the perovskite K1-yLiyTa1-xNbxO3:Cu Journal of Crystal Growth. ,vol. 131, pp. 486- 494 ,(1993) , 10.1016/0022-0248(93)90201-7