Defect-induced magnetism in TiO${}_2$: An example of quasi 2D magnetic order with perpendicular anisotropy

Abstract

Magnetic order at room temperature induced by atomic lattice defects, like vacancies, interstitials or pairs of them, has been observed in a large number of different nonmagnetic 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 in pure TiO${}_2$ (anatase), which 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.

arXiv comment6 pages, 3 figures

References in corpus (6)

• Induced Magnetic Ordering by Proton Irradiation in Graphite
• $\pi$-Electron Ferromagnetism in Metal Free Carbon Probed by Soft X-Ray Dichroism
• Origin of magnetic moments in defective TiO2 single crystals
• The role of hydrogen in room-temperature ferromagnetism at graphite surfaces
• Defect-Induced Magnetism in Solids
• Toward a systematic discovery of artificial functional magnetic materials

Cited by in corpus (2)

• Crystal growth, characterization and electronic band structure of TiSeS
• Geometric Percolation Threshold Defines Half-Metallic Window in Vacancy-Doped Titanium disulfides