正交晶系
铁电性
极化(电化学)
材料科学
凝聚态物理
掺杂剂
矫顽力
结晶学
光电子学
电介质
晶体结构
化学
兴奋剂
物理化学
物理
作者
Sergiu Clima,Dirk J. Wouters,Christoph Adelmann,Tony Schenk,Uwe Schroeder,M. Jurczak,Geoffrey Pourtois
摘要
The origin of the ferroelectric polarization switching in orthorhombic HfO2 has been investigated by first principles calculations. The phenomenon can be regarded as being the coordinated displacement of four O ions in the orthorhombic unit cell, which can lead to a saturated polarization as high as 53 μC/cm2. We show the correlation between the computed polarization reversal barrier and the experimental coercive fields.
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