- AutorIn
- Markus Stiller
- Jose Barzola-Quiquia
- Pablo Esquinazi
- Daniel Spemann
- Jan Meijer
- Michael Lorenz
- Marius Grundmann
- Titel
- Strong out-of-plane magnetic anisotropy in ion irradiated anatase TiO2 thin films
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:15-qucosa-216180
- Quellenangabe
- AIP Advances 6, 125009 (2016) doi: 10.1063/1.4971794
- Erstveröffentlichung
- 2016
- Abstract (EN)
- The temperature and field dependence of the magnetization of epitaxial, undoped anatase TiO2 thin films on SrTiO3 substrates was investigated. Low-energy ion irradiation was used to modify the surface of the films within a few nanometers, yet with high enough energy to produce oxygen and titanium vacancies. The as-prepared thin film shows ferromagnetism which increases after irradiation with low-energy ions. An optimal and clear magnetic anisotropy was observed after the first irradiation, opposite to the expected form anisotropy. Taking into account the experimental parameters, titanium vacancies as di-Frenkel pairs appear to be responsible for the enhanced ferromagnetism and the strong anisotropy observed in our films. The magnetic impurities concentrations was measured by particle-induced X-ray emission with ppm resolution. They are ruled out as a source of the observed ferromagnetism before and after irradiation.
- Andere Ausgabe
- Link zur Originalpublikation in der Zeitschrift AIP Advances
Link: http://dx.doi.org/10.1063/1.4971794 - Freie Schlagwörter (DE)
- magnetische Anisotropie, Titandioxid
- Freie Schlagwörter (EN)
- magnetic anisotropy, TiO2 thin film
- Klassifikation (DDC)
- 530
- Herausgeber (Institution)
- Universität Leipzig
- Verlag
- AIP Publishing, Melville
- URN Qucosa
- urn:nbn:de:bsz:15-qucosa-216180
- Veröffentlichungsdatum Qucosa
- 14.12.2016
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch