铁电性
兴奋剂
材料科学
氧气
极化(电化学)
金属
薄膜
光电子学
纳米技术
凝聚态物理
电介质
化学
物理化学
冶金
物理
有机化学
作者
Yushui Tian,Yulu Zhou,Miao Zhao,Yifang Ouyang,Xiaoma Tao
摘要
In this work, the effect of VB metal doping HfO2 is studied by first-principles calculation. The doping of VB group elements has special oxygen defect behavior due to its pentavalent properties. Moreover, a metal co-doping method based on electronic compensation is explored to regulate oxygen defects in the ferroelectric phase. The influence of co-doping on ferroelectric polarization is also studied, and the results show that Sc-Nb and Sc-Ta co-doping are effective methods to improve the ferroelectricity of HfO2. These studies provide a potential method for regulation of oxygen defects and the improvement of ferroelectricity in HfO2-based ferroelectric thin films.
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