polarization switch meaning in English

变极点火开关
变极开关
极化开关
偏振开关

It is found that the surface potential of the negative charge bits are higher than those of the corresponding positive ones . when ferroelectric polarization switching occurs , the potential difference becomes even more remarkable . the origin of this phenomenon traced to the existence of internal field within the interface layer which is near the ferroelectric / electrode interface
研究发现pzt薄膜表面的电荷沉积与薄膜-底电极界面层内部的界面电场存在密切联系,由此我们建立了一个界面电场模型,定性地解释了pzt薄膜表面电荷沉积的非对称现象。