1) polarization reversal
极化反转
1.
It was speculated therefore,the“six site potential”is not very appreciative for describing the polarization reversal in these ferroelectric copolymers.
由此推论“六阱势”理论不是描述这种有机铁电共聚物极化反转的合适的理论模型。
2.
By means of impedance analyzer and iterative method, the polarization reversal process of Pb (Mg1/3Nb2/3)0.
455O3压电陶瓷的极化反转过程进行了研究。
3.
The polarization reversal characteristics of(Pb1-xSrx)TiO3 ferroelectric thin films were measured by square-wave voltage with double polarity and double impulse.
采用磁控溅射技术在Si基底上制备了(Pb1-xSrx)TiO3(简称PST)铁电薄膜,采用双极性、双脉冲方波电压测试了其极化反转特性。
2) polarization switching
极化反转
1.
A nonlinear constitutive model for piezoelectric ceramics is proposed, in which the polarization switching and electric saturation are taken into account.
提出了一个简单的包含有极化反转及电饱和影响的压电材料的本构模型。
2.
In this work, the influences of thickness and grain size on ferroelectric, polarization switching current have been studied in experiments and theoretical analyses.
本论文主要针对FRAM用PZT 铁电薄膜进行了研究,对薄膜厚度和晶粒尺寸与薄膜的铁电性和极化反转电流的关系进行了实验和理论分析。
3.
The electron emission from the diode is the result of polarization switching of the ferroelectric cathode.
铁电阴极二极管电子发射过程中极化反转起决定性作用，场致发射电流可以忽略，等离子体爆炸发射在极化电场达到一定强度时发生，阴极发射能力与极化电场间满足幂为3的指数关系。
3) polarization switch
极化反转
1.
An equivalent circuit of ferroelectrics in response with fast and slow polarization effect was given, and can be used to analyze the polarization switch signal of TGS crystal.
给出快效应和慢效应的等效电路,并对ＴＧＳ单晶的脉冲极化反转实验结果进行了定量计算和定性分析。
2.
Dynamics theory of ferroelectric polarons, which was developed from the shielding theory of ferroelectricity, is used to explain the polarization switch of ferroelectricity.
在铁电屏蔽理论的基础上发展铁电极化子动力学理论 ,用来解释铁电体的极化反转现象 。
4) reverse-poled
反转极化
1.
The refractive index changes induced by the linear electro-optic effect in normal-poled and reverse-poled LiNbO_3 wave-guides were calculated,and the results that show the refractive index changes in two arms are opposite to each other when the electric field is applied in +z direction,which agree with the experimental results.
对正常型和反转极化型LiNbO3 波导在任意方向加电场 ,由线性电光效应引起的折射率的变化做了计算分析 ,结果发现只有在z方向加电场 ,LiNbO3 两波导臂折射率的变化才是完全相反的。
5) fast polarization switch
快极化反转
1.
The fast polarization switch plays an important role in electron emission from ferroelectric cathode.
快极化反转在铁电阴极电子发射过程中具有决定性的作用 ,本工作采用XRD ,SEM等方法研究铁电发射机理 ,XRD图谱、晶胞参数测试结果以及扫描电镜观察到的电畴排列状况等从多个角度反映出不同铁电材料在电子发射前、后的晶体结构及电畴结构的相应变化状况 ,对实验结果的分析有助于理解铁电阴极电子发射机理以及性能与组成、结构之间的关系 。
2.
The conclusion that the fequency of the electron emission waveforms was modulated by the the surface vibration could be drawn from the above results based on the surface acoustic waves theory and ferroelctric emission theories of fast polarization switch and surface plasma.
基于以上实验结果和计算结果,结合目前铁电电子发射的快极化反转和表面等离子体理论,可得出压电表面振动对电子发射波形进行了频率调制,合理解释了电子发射波形周期性出现多个峰值的现象。
6) inversion of polarizability
极化极性反转
补充资料：布居数反转
分子式：
CAS号：
性质： 又称粒子数反转或布居倒转。在一系统中发生原子能级的再分布，以致产生激光作用。正常情况下，一组原子处于温度平衡体系之中时，处于低能态的原子总是多于高能态的。但是能量的吸收与发射是一种连续过程，不同能态原子的统计分布(布居)保持不变。当抽运能量使这系统受到激励时，分布受到扰动，会出现粒子数反转：高能态的原子数(亦即布居数)比低能态的多。
CAS号：
性质： 又称粒子数反转或布居倒转。在一系统中发生原子能级的再分布，以致产生激光作用。正常情况下，一组原子处于温度平衡体系之中时，处于低能态的原子总是多于高能态的。但是能量的吸收与发射是一种连续过程，不同能态原子的统计分布(布居)保持不变。当抽运能量使这系统受到激励时，分布受到扰动，会出现粒子数反转：高能态的原子数(亦即布居数)比低能态的多。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条