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《Experimental Technology and Management》 2017-01
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Research on combination of relative dielectric constant test with simulation calculation

Zhang Maolin;Li Zhimin;Shi Jianzhang;Huang Yunxia;Yan Yangxi;Sun Peng;School of Advanced Materials and Nanotechnology,Xidian University;  
By using the frequency resonance experiment and first-principle calculation method,the changeable relation of the relative dielectric constant frequency of barium titanate is tested and calculated.The resonance test results show that within the frequency range of 100Hz-10 kHz,the relative dielectric constant of barium titanate decreases from 1,250 to 150.The first-principle calculation results show that the relative dielectric constant of the material is very small in optical frequency,and there is a dispersion phenomenon.Through the comparative research on the two different experimental methods,it is helpful for the students to obtain the deep understanding of the theory about dielectric polarization.
【Fund】: 陕西省自然科学基础研究计划项目(2015JQ6252);; 宁波市自然科学基金项目(2015A610109 2015A610037);; 西安电子科技大学新实验开发与新实验设备研制及实验教学改革项目(SY1570 SY1571);西安电子科技大学研究生校企联合课程专项支持计划项目(XQLH1505)
【CateGory Index】: TM282-4;G642
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