Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures
Condensed matter physics: unexpected magnetic anisotropy emerges in a heterostructure An unexpected magnetic anisotropy emerges at the interface of nickel and nickel oxide, which is attributed to the anisotropic orbital occupation of interfacial nickel ions. A team led by Yuan-Hua Lin at the Tsinghu...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2017-03-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-017-0020-0 |
| _version_ | 1818997860830543872 |
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| author | Yu-Jun Zhang Liang Wu Ji Ma Qing-Hua Zhang Atsushi Fujimori Jing Ma Yuan-Hua Lin Ce-Wen Nan Nian-Xiang Sun |
| author_facet | Yu-Jun Zhang Liang Wu Ji Ma Qing-Hua Zhang Atsushi Fujimori Jing Ma Yuan-Hua Lin Ce-Wen Nan Nian-Xiang Sun |
| author_sort | Yu-Jun Zhang |
| collection | DOAJ |
| description | Condensed matter physics: unexpected magnetic anisotropy emerges in a heterostructure An unexpected magnetic anisotropy emerges at the interface of nickel and nickel oxide, which is attributed to the anisotropic orbital occupation of interfacial nickel ions. A team led by Yuan-Hua Lin at the Tsinghua University and collaborators at the University of Tokyo and Northeastern University investigated the magnetic properties of a Ni/NiO heterostructure grown on SrTiO3 substrate. They observed an unexpected magnetic anisotropy along an in-plane axis at the Ni and NiO (110) interface. By measuring the thickness and temperature dependence, they excluded the interfacial exchange coupling as a mechanism. Instead, further local magnetic measurements revealed that an anisotropic orbital occupancy of interfacial nickel ions drove the emergence of such a magnetic anisotropy. This result may provide a helpful insight to manipulate this magnetic anisotropy in spintronic applications by strain engineering. |
| first_indexed | 2024-12-20T21:52:21Z |
| format | Article |
| id | doaj.art-855d0ebf303e4eb9b7f064115abeb308 |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-12-20T21:52:21Z |
| publishDate | 2017-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-855d0ebf303e4eb9b7f064115abeb3082022-12-21T19:25:31ZengNature Portfolionpj Quantum Materials2397-46482017-03-01211710.1038/s41535-017-0020-0Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructuresYu-Jun Zhang0Liang Wu1Ji Ma2Qing-Hua Zhang3Atsushi Fujimori4Jing Ma5Yuan-Hua Lin6Ce-Wen Nan7Nian-Xiang Sun8State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityDepartment of Physics, University of TokyoState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityElectric and Computer Engineering Department, Northeastern UniversityCondensed matter physics: unexpected magnetic anisotropy emerges in a heterostructure An unexpected magnetic anisotropy emerges at the interface of nickel and nickel oxide, which is attributed to the anisotropic orbital occupation of interfacial nickel ions. A team led by Yuan-Hua Lin at the Tsinghua University and collaborators at the University of Tokyo and Northeastern University investigated the magnetic properties of a Ni/NiO heterostructure grown on SrTiO3 substrate. They observed an unexpected magnetic anisotropy along an in-plane axis at the Ni and NiO (110) interface. By measuring the thickness and temperature dependence, they excluded the interfacial exchange coupling as a mechanism. Instead, further local magnetic measurements revealed that an anisotropic orbital occupancy of interfacial nickel ions drove the emergence of such a magnetic anisotropy. This result may provide a helpful insight to manipulate this magnetic anisotropy in spintronic applications by strain engineering.https://doi.org/10.1038/s41535-017-0020-0 |
| spellingShingle | Yu-Jun Zhang Liang Wu Ji Ma Qing-Hua Zhang Atsushi Fujimori Jing Ma Yuan-Hua Lin Ce-Wen Nan Nian-Xiang Sun Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures npj Quantum Materials |
| title | Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures |
| title_full | Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures |
| title_fullStr | Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures |
| title_full_unstemmed | Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures |
| title_short | Interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in Ni/NiO(110) heterostructures |
| title_sort | interfacial orbital preferential occupation induced controllable uniaxial magnetic anisotropy observed in ni nio 110 heterostructures |
| url | https://doi.org/10.1038/s41535-017-0020-0 |
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