Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films
Epitaxial strain provides important pathways to control the magnetic and electronic states in transition-metal oxides. However, the large strain is usually accompanied by a strong reduction of the oxygen-vacancy formation energy, which hinders the direct manipulation of their intrinsic properties. H...
| Main Authors: | , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-05-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.10.021030 |
| _version_ | 1818981299985055744 |
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| author | Yujia Wang Qing He Wenmei Ming Mao-Hua Du Nianpeng Lu Clodomiro Cafolla Jun Fujioka Qinghua Zhang Ding Zhang Shengchun Shen Yingjie Lyu Alpha T. N’Diaye Elke Arenholz Lin Gu Cewen Nan Yoshinori Tokura Satoshi Okamoto Pu Yu |
| author_facet | Yujia Wang Qing He Wenmei Ming Mao-Hua Du Nianpeng Lu Clodomiro Cafolla Jun Fujioka Qinghua Zhang Ding Zhang Shengchun Shen Yingjie Lyu Alpha T. N’Diaye Elke Arenholz Lin Gu Cewen Nan Yoshinori Tokura Satoshi Okamoto Pu Yu |
| author_sort | Yujia Wang |
| collection | DOAJ |
| description | Epitaxial strain provides important pathways to control the magnetic and electronic states in transition-metal oxides. However, the large strain is usually accompanied by a strong reduction of the oxygen-vacancy formation energy, which hinders the direct manipulation of their intrinsic properties. Here, using a postdeposition ozone annealing method, we obtain a series of oxygen stoichiometric SrCoO_{3} thin films with the tensile strain up to 3.0%. We observe a robust ferromagnetic ground state in all strained thin films, while interestingly the tensile strain triggers a distinct metal-to-insulator transition along with the increase of the tensile strain. The persistent ferromagnetic state across the electrical transition therefore suggests that the magnetic state is directly correlated with the localized electrons, rather than the itinerant ones, which then calls for further investigation of the intrinsic mechanism of this magnetic compound beyond the double-exchange mechanism. |
| first_indexed | 2024-12-20T17:29:07Z |
| format | Article |
| id | doaj.art-d809645c1c1945328a870677517162d9 |
| institution | Directory Open Access Journal |
| issn | 2160-3308 |
| language | English |
| last_indexed | 2024-12-20T17:29:07Z |
| publishDate | 2020-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review X |
| spelling | doaj.art-d809645c1c1945328a870677517162d92022-12-21T19:31:27ZengAmerican Physical SocietyPhysical Review X2160-33082020-05-0110202103010.1103/PhysRevX.10.021030Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin FilmsYujia WangQing HeWenmei MingMao-Hua DuNianpeng LuClodomiro CafollaJun FujiokaQinghua ZhangDing ZhangShengchun ShenYingjie LyuAlpha T. N’DiayeElke ArenholzLin GuCewen NanYoshinori TokuraSatoshi OkamotoPu YuEpitaxial strain provides important pathways to control the magnetic and electronic states in transition-metal oxides. However, the large strain is usually accompanied by a strong reduction of the oxygen-vacancy formation energy, which hinders the direct manipulation of their intrinsic properties. Here, using a postdeposition ozone annealing method, we obtain a series of oxygen stoichiometric SrCoO_{3} thin films with the tensile strain up to 3.0%. We observe a robust ferromagnetic ground state in all strained thin films, while interestingly the tensile strain triggers a distinct metal-to-insulator transition along with the increase of the tensile strain. The persistent ferromagnetic state across the electrical transition therefore suggests that the magnetic state is directly correlated with the localized electrons, rather than the itinerant ones, which then calls for further investigation of the intrinsic mechanism of this magnetic compound beyond the double-exchange mechanism.http://doi.org/10.1103/PhysRevX.10.021030 |
| spellingShingle | Yujia Wang Qing He Wenmei Ming Mao-Hua Du Nianpeng Lu Clodomiro Cafolla Jun Fujioka Qinghua Zhang Ding Zhang Shengchun Shen Yingjie Lyu Alpha T. N’Diaye Elke Arenholz Lin Gu Cewen Nan Yoshinori Tokura Satoshi Okamoto Pu Yu Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films Physical Review X |
| title | Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films |
| title_full | Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films |
| title_fullStr | Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films |
| title_full_unstemmed | Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films |
| title_short | Robust Ferromagnetism in Highly Strained SrCoO_{3} Thin Films |
| title_sort | robust ferromagnetism in highly strained srcoo 3 thin films |
| url | http://doi.org/10.1103/PhysRevX.10.021030 |
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