Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices
LaNiO3-BaTiO3 superlattices with different types of interfaces are studied from first-principles density-functional theory. It is revealed that the ferroelectricity in the superlattice with (NiO2)−/(BaO)0 interfaces is enhanced from that of the superlattice with (LaO)+/(TiO2)0 interfaces. The origin...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2014-08-01
|
| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4892610 |
| _version_ | 1811335373087834112 |
|---|---|
| author | Yin-Zhong Wu Hai-Shuang Lu Tian-Yi Cai Sheng Ju |
| author_facet | Yin-Zhong Wu Hai-Shuang Lu Tian-Yi Cai Sheng Ju |
| author_sort | Yin-Zhong Wu |
| collection | DOAJ |
| description | LaNiO3-BaTiO3 superlattices with different types of interfaces are studied from first-principles density-functional theory. It is revealed that the ferroelectricity in the superlattice with (NiO2)−/(BaO)0 interfaces is enhanced from that of the superlattice with (LaO)+/(TiO2)0 interfaces. The origin lies at the polar discontinuity at the interface, which makes the holes localized within the (NiO2)−/(BaO)0 interface, but drives a penetration of electrons into BaTiO3 component near (LaO)+/(TiO2)0 interface. Our calculations demonstrate an effective avenue to the robust ferroelectricity in BaTiO3 ultrathin films. |
| first_indexed | 2024-04-13T17:24:07Z |
| format | Article |
| id | doaj.art-62700446e8ed4d8c8648c71cf6693ee5 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-04-13T17:24:07Z |
| publishDate | 2014-08-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-62700446e8ed4d8c8648c71cf6693ee52022-12-22T02:37:52ZengAIP Publishing LLCAIP Advances2158-32262014-08-0148087109087109-710.1063/1.4892610005408ADVInterface control of ferroelectricity in LaNiO3-BaTiO3 superlatticesYin-Zhong Wu0Hai-Shuang Lu1Tian-Yi Cai2Sheng Ju3Jiangsu Laboratory of Advanced Functional Materials and Physics Department, Changshu Institute of Technology, Changshu 215500, P. R. ChinaDepartment of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, P. R. ChinaDepartment of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, P. R. ChinaDepartment of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006, P. R. ChinaLaNiO3-BaTiO3 superlattices with different types of interfaces are studied from first-principles density-functional theory. It is revealed that the ferroelectricity in the superlattice with (NiO2)−/(BaO)0 interfaces is enhanced from that of the superlattice with (LaO)+/(TiO2)0 interfaces. The origin lies at the polar discontinuity at the interface, which makes the holes localized within the (NiO2)−/(BaO)0 interface, but drives a penetration of electrons into BaTiO3 component near (LaO)+/(TiO2)0 interface. Our calculations demonstrate an effective avenue to the robust ferroelectricity in BaTiO3 ultrathin films.http://dx.doi.org/10.1063/1.4892610 |
| spellingShingle | Yin-Zhong Wu Hai-Shuang Lu Tian-Yi Cai Sheng Ju Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices AIP Advances |
| title | Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices |
| title_full | Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices |
| title_fullStr | Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices |
| title_full_unstemmed | Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices |
| title_short | Interface control of ferroelectricity in LaNiO3-BaTiO3 superlattices |
| title_sort | interface control of ferroelectricity in lanio3 batio3 superlattices |
| url | http://dx.doi.org/10.1063/1.4892610 |
| work_keys_str_mv | AT yinzhongwu interfacecontrolofferroelectricityinlanio3batio3superlattices AT haishuanglu interfacecontrolofferroelectricityinlanio3batio3superlattices AT tianyicai interfacecontrolofferroelectricityinlanio3batio3superlattices AT shengju interfacecontrolofferroelectricityinlanio3batio3superlattices |