Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode
Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupl...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cao, Dan [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media New York 2015 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science - Springer US, 1966, 51(2015), 7 vom: 21. Dez., Seite 3297-3302 |
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| Übergeordnetes Werk: |
volume:51 ; year:2015 ; number:7 ; day:21 ; month:12 ; pages:3297-3302 |
| Links: |
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| DOI / URN: |
10.1007/s10853-015-9656-y |
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OLC2046410882 |
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| 245 | 1 | 0 | |a Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode |
| 264 | 1 | |c 2015 | |
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| 520 | |a Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. | ||
| 650 | 4 | |a BaTiO3 | |
| 650 | 4 | |a Interfacial Structure | |
| 650 | 4 | |a Alloy Electrode | |
| 650 | 4 | |a Polarization Orientation | |
| 650 | 4 | |a Ferroelectric Polarization | |
| 700 | 1 | |a Wang, Jian-feng |4 aut | |
| 700 | 1 | |a Jiang, Zhou-ting |4 aut | |
| 700 | 1 | |a Wu, Tai-quan |4 aut | |
| 700 | 1 | |a Jiao, Zhi-wei |4 aut | |
| 700 | 1 | |a Shu, Hai-bo |4 aut | |
| 700 | 1 | |a Cai, Meng-qiu |4 aut | |
| 700 | 1 | |a Hu, Wang-yu |4 aut | |
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10.1007/s10853-015-9656-y doi (DE-627)OLC2046410882 (DE-He213)s10853-015-9656-y-p DE-627 ger DE-627 rakwb eng 670 VZ Cao, Dan verfasserin aut Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2015 Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization Wang, Jian-feng aut Jiang, Zhou-ting aut Wu, Tai-quan aut Jiao, Zhi-wei aut Shu, Hai-bo aut Cai, Meng-qiu aut Hu, Wang-yu aut Enthalten in Journal of materials science Springer US, 1966 51(2015), 7 vom: 21. Dez., Seite 3297-3302 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:51 year:2015 number:7 day:21 month:12 pages:3297-3302 https://doi.org/10.1007/s10853-015-9656-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 51 2015 7 21 12 3297-3302 |
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10.1007/s10853-015-9656-y doi (DE-627)OLC2046410882 (DE-He213)s10853-015-9656-y-p DE-627 ger DE-627 rakwb eng 670 VZ Cao, Dan verfasserin aut Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2015 Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization Wang, Jian-feng aut Jiang, Zhou-ting aut Wu, Tai-quan aut Jiao, Zhi-wei aut Shu, Hai-bo aut Cai, Meng-qiu aut Hu, Wang-yu aut Enthalten in Journal of materials science Springer US, 1966 51(2015), 7 vom: 21. Dez., Seite 3297-3302 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:51 year:2015 number:7 day:21 month:12 pages:3297-3302 https://doi.org/10.1007/s10853-015-9656-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 51 2015 7 21 12 3297-3302 |
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10.1007/s10853-015-9656-y doi (DE-627)OLC2046410882 (DE-He213)s10853-015-9656-y-p DE-627 ger DE-627 rakwb eng 670 VZ Cao, Dan verfasserin aut Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2015 Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization Wang, Jian-feng aut Jiang, Zhou-ting aut Wu, Tai-quan aut Jiao, Zhi-wei aut Shu, Hai-bo aut Cai, Meng-qiu aut Hu, Wang-yu aut Enthalten in Journal of materials science Springer US, 1966 51(2015), 7 vom: 21. Dez., Seite 3297-3302 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:51 year:2015 number:7 day:21 month:12 pages:3297-3302 https://doi.org/10.1007/s10853-015-9656-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 51 2015 7 21 12 3297-3302 |
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10.1007/s10853-015-9656-y doi (DE-627)OLC2046410882 (DE-He213)s10853-015-9656-y-p DE-627 ger DE-627 rakwb eng 670 VZ Cao, Dan verfasserin aut Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2015 Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization Wang, Jian-feng aut Jiang, Zhou-ting aut Wu, Tai-quan aut Jiao, Zhi-wei aut Shu, Hai-bo aut Cai, Meng-qiu aut Hu, Wang-yu aut Enthalten in Journal of materials science Springer US, 1966 51(2015), 7 vom: 21. Dez., Seite 3297-3302 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:51 year:2015 number:7 day:21 month:12 pages:3297-3302 https://doi.org/10.1007/s10853-015-9656-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 51 2015 7 21 12 3297-3302 |
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10.1007/s10853-015-9656-y doi (DE-627)OLC2046410882 (DE-He213)s10853-015-9656-y-p DE-627 ger DE-627 rakwb eng 670 VZ Cao, Dan verfasserin aut Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode 2015 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2015 Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization Wang, Jian-feng aut Jiang, Zhou-ting aut Wu, Tai-quan aut Jiao, Zhi-wei aut Shu, Hai-bo aut Cai, Meng-qiu aut Hu, Wang-yu aut Enthalten in Journal of materials science Springer US, 1966 51(2015), 7 vom: 21. Dez., Seite 3297-3302 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:51 year:2015 number:7 day:21 month:12 pages:3297-3302 https://doi.org/10.1007/s10853-015-9656-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_20 GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 51 2015 7 21 12 3297-3302 |
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Cao, Dan ddc 670 misc BaTiO3 misc Interfacial Structure misc Alloy Electrode misc Polarization Orientation misc Ferroelectric Polarization Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode |
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670 VZ Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode BaTiO3 Interfacial Structure Alloy Electrode Polarization Orientation Ferroelectric Polarization |
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Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode |
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Cao, Dan Wang, Jian-feng Jiang, Zhou-ting Wu, Tai-quan Jiao, Zhi-wei Shu, Hai-bo Cai, Meng-qiu Hu, Wang-yu |
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interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction feco/$ batio_{3} $/feco with alloy electrode |
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Interfacial structure, ferroelectric stability, and magnetoelectric effect of magnetoelectric junction FeCo/$ BaTiO_{3} $/FeCo with alloy electrode |
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Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. © Springer Science+Business Media New York 2015 |
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Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. © Springer Science+Business Media New York 2015 |
| abstract_unstemmed |
Abstract The interfacial structures, ferroelectric instability, and magnetoelectric coupling effect of FeCo/$ BaTiO_{3} $/FeCo junction with alloy electrode have been studied systematically using the first-principles calculations within density functional theory. Owing to different interfacial coupling between the electrode and $ BaTiO_{3} $ barrier layer, there are four possible interfacial structures, including $ TiO_{2} $/Fe, BaO/Fe, $ TiO_{2} $/Co, and BaO/Co interfaces. Among the four interfacial structures, the $ TiO_{2} $/Fe interface is the most stable one. With the decreasing thickness of $ BaTiO_{3} $ barrier layer in the junction, there exists a critical size of ferroelectricity with a thickness of ~4.5 formula unit cells. However, the ferroelectric polarization of magnetoelectric junction with the alloy FeCo electrode is larger than that of the junction with the Co electrode using a same size due to the stronger screening ability of alloy FeCo electrode. Meanwhile, we find that the induced magnetic moments of Ti atoms are nearly from the contribution of the first $ TiO_{2} $ layer adjacent to the interfaces irrespective of the thickness of ferroelectric barrier. In other words, the induced magnetic moments of Ti atoms only maintain an atom-layer thickness. Moreover, the induced magnetic moments of Ti atoms and local magnetic moments of Fe atoms at the two interfaces of tunneling junction depend on the polarization orientation, leading to a sizable ME coupling effect. © Springer Science+Business Media New York 2015 |
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