Impact of biaxial compressive strain on the heterostructures of paraelectrics KTaO3 and SrTiO3
Source abstract
Abstract
We have performed density functional theory calculations to explore the impact of biaxial compressive strain on the heterostructures of paraelectrics KTaO3 and SrTiO3. We find that the strain induces strong ferroelectric distortion in KTaO3/SrTiO3 heterostructures and it stabilizes the heterostructures in ferroelectric states.The strain influences the distribution of doped holes and leads to the localization of holes in TiO2 layer. It is very interesting that ferroelectricity and ferromagnetism simultaneously present in the strained heterostructures formed by the paraelectrics KTaO3 and SrTiO3. The reversal of ferroelectric polarization changes the interface magnetization and thus results in magnetoelectric coupling effect in the heterostructures.
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Research context
OpenAlex topics: Electronic and Structural Properties of Oxides · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter 1 , Chinese Academy of Sciences, Fuzhou, 350002, Fujian, People’s Republic of China
University of Chinese Academy of Sciences 2 , Beijing, 100049, People’s Republic of China
Funding
Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry · National Basic Research Program of China · National Natural Science Foundation of China
References (47)
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