Defect-induced magnetism in TiO2: An example of quasi 2D magnetic order with perpendicular anisotropy

• DOI: 10.3389/fphy.2023.1124924
• Publication Date: 2023-02-01T06:23:22Z
• Authors: Markus Stiller; Pablo D. Esquinazi
• Keywords: Magnetism

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 time-independent magnetic response indicate the extraordinary robustness this new phenomenon solid-state magnetism. In work, we review experimental theoretical results TiO 2 (anatase), whose can be triggered low-energy ion irradiation. particular, discuss systematic observation an ultrathin layer with perpendicular anisotropy surface oxide.