Ferromagnetism in co-doped TiO2 rutile thin films grown by laser molecularbeam epitaxy

Authors
Matsumoto, Y Takahashi, R Murakami, M Koida, T Fan, XJ Hasegawa, T Fukumura, T Kawasaki, M Koshihara, SY Koinuma, H
Citation
Y. Matsumoto et al., Ferromagnetism in co-doped TiO2 rutile thin films grown by laser molecularbeam epitaxy, JPN J A P 2, 40(11B), 2001, pp. L1204-L1206
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS → ACNP
Volume
40
Issue
11B
Year of publication
2001
Pages
L1204 - L1206
Database
ISI
SICI code
Abstract
Epitaxial TiO2 rutile films were fabricated on alpha -Al2O3 (10 (1) over ba r2) substrate in the layer-by-layer fashion by laser molecular beam epitaxy . Ablation with a Co-doped TiO2 target produced single phase of rutile film with the concentration of Co between 0 and 5%. Some ferromagnetic domain s tructures were observed in CoxTi1-xO2 rutile films by a scanning supercondu cting quantum interference device microscope at 3 to 90 K. The magnetic hys teresis could also be observed even at room temperature with a magnetic mom ent of similar to1 muB/Co atom.