Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy
Magnetic order at room temperature induced by atomic lattice defects, like vacancies, interstitials, or their pairs, has been observed in a large number of different non-magnetic hosts, such as pure graphite, oxides, and silicon-based materials. High Curie temperatures and time-independent magnetic...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-02-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1124924/full |
| _version_ | 1797937902890516480 |
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| author | Markus Stiller Pablo D. Esquinazi |
| author_facet | Markus Stiller Pablo D. Esquinazi |
| author_sort | Markus Stiller |
| collection | DOAJ |
| description | Magnetic order at room temperature induced by atomic lattice defects, like vacancies, interstitials, or their pairs, has been observed in a large number of different non-magnetic hosts, such as pure graphite, oxides, and silicon-based materials. High Curie temperatures and time-independent magnetic response at room temperature indicate the extraordinary robustness of this new phenomenon in solid-state magnetism. In this work, we review experimental and theoretical results of pure TiO2 (anatase), whose magnetic order can be triggered by low-energy ion irradiation. In particular, we discuss the systematic observation of an ultrathin magnetic layer with perpendicular magnetic anisotropy at the surface of this oxide. |
| first_indexed | 2024-04-10T18:52:29Z |
| format | Article |
| id | doaj.art-6bfc1f3c8457422d97d7011d3d44d50b |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-04-10T18:52:29Z |
| publishDate | 2023-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-6bfc1f3c8457422d97d7011d3d44d50b2023-02-01T06:22:59ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-02-011110.3389/fphy.2023.11249241124924Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropyMarkus StillerPablo D. EsquinaziMagnetic order at room temperature induced by atomic lattice defects, like vacancies, interstitials, or their pairs, has been observed in a large number of different non-magnetic hosts, such as pure graphite, oxides, and silicon-based materials. High Curie temperatures and time-independent magnetic response at room temperature indicate the extraordinary robustness of this new phenomenon in solid-state magnetism. In this work, we review experimental and theoretical results of pure TiO2 (anatase), whose magnetic order can be triggered by low-energy ion irradiation. In particular, we discuss the systematic observation of an ultrathin magnetic layer with perpendicular magnetic anisotropy at the surface of this oxide.https://www.frontiersin.org/articles/10.3389/fphy.2023.1124924/fulloxide2D magnetic orderdefect-induced magnetismion irradiationvacancy–interstitial pairssurface ferromagnetism |
| spellingShingle | Markus Stiller Pablo D. Esquinazi Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy Frontiers in Physics oxide 2D magnetic order defect-induced magnetism ion irradiation vacancy–interstitial pairs surface ferromagnetism |
| title | Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy |
| title_full | Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy |
| title_fullStr | Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy |
| title_full_unstemmed | Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy |
| title_short | Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy |
| title_sort | defect induced magnetism in tio2 an example of quasi 2d magnetic order with perpendicular anisotropy |
| topic | oxide 2D magnetic order defect-induced magnetism ion irradiation vacancy–interstitial pairs surface ferromagnetism |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1124924/full |
| work_keys_str_mv | AT markusstiller defectinducedmagnetismintio2anexampleofquasi2dmagneticorderwithperpendicularanisotropy AT pablodesquinazi defectinducedmagnetismintio2anexampleofquasi2dmagneticorderwithperpendicularanisotropy |